Portland, Maine | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Portland International Jetport, Maine (1991–2020 normals, extremes 1871-present) | |||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 57 (14) |
59 (15) |
82 (28) |
90 (32) |
97 (36) |
99 (37) |
102 (39) |
102 (39) |
97 (36) |
86 (30) |
70 (21) |
63 (17) |
102 (39) |
Mean maximum °F (°C) | 42.8 (6.0) |
42.4 (5.8) |
55.8 (13.2) |
72.7 (22.6) |
85.5 (29.7) |
89.2 (31.8) |
91.6 (33.1) |
90.0 (32.2) |
86.5 (30.3) |
73.6 (23.1) |
60.1 (15.6) |
46.6 (8.1) |
93.6 (34.2) |
Mean daily maximum °F (°C) | 23.4 (−4.8) |
26.1 (−3.3) |
36.9 (2.7) |
52.0 (11.1) |
64.2 (17.9) |
73.6 (23.1) |
79.5 (26.4) |
78.6 (25.9) |
71.1 (21.7) |
57.7 (14.3) |
43.0 (6.1) |
29.3 (−1.5) |
53.0 (11.6) |
Daily mean °F (°C) | 15.1 (−9.4) |
17.2 (−8.2) |
28.8 (−1.8) |
42.8 (6.0) |
54.9 (12.7) |
64.2 (17.9) |
70.3 (21.3) |
69.3 (20.7) |
61.5 (16.4) |
48.6 (9.2) |
34.5 (1.4) |
21.4 (−5.9) |
44.1 (6.7) |
Mean daily minimum °F (°C) | 6.6 (−14.1) |
8.2 (−13.2) |
20.7 (−6.3) |
33.6 (0.9) |
45.5 (7.5) |
55.0 (12.8) |
61.2 (16.2) |
59.7 (15.4) |
52.2 (11.2) |
39.2 (4.0) |
26.2 (−3.2) |
13.5 (−10.3) |
35.1 (1.7) |
Mean minimum °F (°C) | −15.2 (−26.2) |
−11.2 (−24.0) |
1.0 (−17.2) |
21.9 (−5.6) |
33.1 (0.6) |
43.3 (6.3) |
51.6 (10.9) |
48.6 (9.2) |
37.0 (2.8) |
24.6 (−4.1) |
10.6 (−11.9) |
−5.1 (−20.6) |
−18.0 (−27.8) |
Record low °F (°C) | −35 (−37) |
−47 (−44) |
−26 (−32) |
7 (−14) |
23 (−5) |
34 (1) |
39 (4) |
34 (1) |
23 (−5) |
14 (−10) |
−11 (−24) |
−29 (−34) |
−47 (−44) |
Average precipitation inches (mm) | 3.5 (89) |
3.5 (90) |
4.1 (104) |
4.4 (112) |
3.7 (93) |
4.1 (105) |
3.4 (87) |
3.6 (91) |
3.8 (96) |
5.2 (133) |
4.3 (108) |
4.5 (114) |
48.1 (1,222) |
Average snowfall inches (cm) | 34 (87) |
32 (82) |
22 (55) |
3.5 (9) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.4 (1) |
14 (36) |
34 (87) |
139.9 (357) |
Average extreme snow depth inches (cm) | 19 (49) |
27 (68) |
25 (64) |
3.1 (8) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0.4 (1) |
4.7 (12) |
11 (28) |
28 (70) |
Average precipitation days (≥ 0.2 mm) | 11.2 | 10.2 | 11.3 | 11.1 | 12.5 | 11.7 | 10.8 | 9.4 | 9.3 | 10.9 | 10.7 | 12.3 | 131.4 |
Average snowy days (≥ 0.2 cm) | 10.6 | 9.0 | 7.1 | 2.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 3.5 | 10.0 | 42.8 |
Average relative humidity (%) | 66.8 | 65.2 | 66.3 | 66.8 | 71.1 | 74.7 | 75.3 | 76.3 | 76.7 | 73.9 | 72.6 | 70.2 | 71.3 |
Mean monthly sunshine hours | 164.8 | 172.8 | 205.2 | 213.5 | 243.2 | 259.1 | 282.2 | 267.6 | 229.1 | 195.7 | 138.7 | 140.9 | 2,512.8 |
Percent possible sunshine | 57 | 59 | 55 | 53 | 53 | 56 | 60 | 62 | 61 | 57 | 48 | 51 | 56 |
Average ultraviolet index | 1 | 2 | 3 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 | 4 |
[ citation needed] |
Pittsfield | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Pittsfield Municipal Airport, MA, 1991–2020 normals, extremes 1925–present | |||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 55 (13) |
64 (18) |
75 (24) |
90 (32) |
93 (34) |
100 (38) |
100 (38) |
100 (38) |
95 (35) |
82 (28) |
73 (23) |
57 (14) |
100 (38) |
Mean daily maximum °F (°C) | 21.0 (−6.1) |
24.1 (−4.4) |
36.3 (2.4) |
53.4 (11.9) |
66.9 (19.4) |
74.7 (23.7) |
79.3 (26.3) |
77.5 (25.3) |
70.3 (21.3) |
56.5 (13.6) |
41.2 (5.1) |
26.4 (−3.1) |
52.3 (11.3) |
Mean daily minimum °F (°C) | 4.8 (−15.1) |
6.1 (−14.4) |
17.8 (−7.9) |
32.0 (0.0) |
44.4 (6.9) |
53.1 (11.7) |
57.9 (14.4) |
56.5 (13.6) |
48.9 (9.4) |
36.7 (2.6) |
23.7 (−4.6) |
11.8 (−11.2) |
32.8 (0.5) |
Record low °F (°C) | −31 (−35) |
−35 (−37) |
−15 (−26) |
9 (−13) |
25 (−4) |
30 (−1) |
39 (4) |
32 (0) |
23 (−5) |
12 (−11) |
−6 (−21) |
−33 (−36) |
−35 (−37) |
Average precipitation inches (mm) | 2.7 (68) |
2.5 (64) |
3.1 (78) |
3.4 (86) |
3.8 (96) |
4.6 (116) |
4.2 (106) |
3.8 (97) |
4.5 (114) |
4.6 (116) |
3.5 (89) |
3.6 (92) |
44.3 (1,122) |
Average snowfall inches (cm) | 28 (71) |
26 (67) |
20 (50) |
4.7 (12) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
2.0 (5) |
9.8 (25) |
33 (85) |
123.5 (315) |
Average precipitation days (≥ .2 mm) | 12 | 12 | 13 | 14 | 14 | 15 | 15 | 15 | 13 | 14 | 12 | 13 | 162 |
Source: Western Regional Climate Center [3] |
Boston | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Record high °F (°C) | 64 (18) |
64 (18) |
84 (29) |
91 (33) |
97 (36) |
100 (38) |
104 (40) |
102 (39) |
102 (39) |
88 (31) |
77 (25) |
66 (19) |
104 (40) |
Mean maximum °F (°C) | 49.3 (9.6) |
48.9 (9.4) |
61.5 (16.4) |
78.1 (25.6) |
88.2 (31.2) |
92.1 (33.4) |
95.0 (35.0) |
93.7 (34.3) |
88.9 (31.6) |
77.7 (25.4) |
64.8 (18.2) |
52.2 (11.2) |
96.4 (35.8) |
Mean daily maximum °F (°C) | 27.9 (−2.3) |
30.0 (−1.1) |
40.1 (4.5) |
54.7 (12.6) |
66.6 (19.2) |
76.3 (24.6) |
82.0 (27.8) |
80.4 (26.9) |
73.0 (22.8) |
60.3 (15.7) |
46.2 (7.9) |
33.3 (0.7) |
55.9 (13.3) |
Daily mean °F (°C) | 20.8 (−6.2) |
22.8 (−5.1) |
32.9 (0.5) |
46.8 (8.2) |
58.5 (14.7) |
68.0 (20.0) |
74.1 (23.4) |
72.7 (22.6) |
65.7 (18.7) |
53.1 (11.7) |
39.4 (4.1) |
26.8 (−2.9) |
48.5 (9.1) |
Mean daily minimum °F (°C) | 14.2 (−9.9) |
15.6 (−9.1) |
25.7 (−3.5) |
39.0 (3.9) |
50.4 (10.2) |
59.7 (15.4) |
66.0 (18.9) |
65.1 (18.4) |
58.8 (14.9) |
45.7 (7.6) |
32.5 (0.3) |
20.1 (−6.6) |
41.1 (5.0) |
Mean minimum °F (°C) | −4.2 (−20.1) |
−0.8 (−18.2) |
10.2 (−12.1) |
29.1 (−1.6) |
41.2 (5.1) |
49.6 (9.8) |
58.6 (14.8) |
57.7 (14.3) |
46.8 (8.2) |
33.3 (0.7) |
19.0 (−7.2) |
4.1 (−15.5) |
−6.3 (−21.3) |
Record low °F (°C) | −22 (−30) |
−27 (−33) |
−13 (−25) |
9 (−13) |
30 (−1) |
41 (5) |
50 (10) |
46 (8) |
34 (1) |
23 (−5) |
−8 (−22) |
−26 (−32) |
−27 (−33) |
Average precipitation inches (mm) | 3.4 (86) |
3.2 (82) |
4.2 (106) |
3.6 (92) |
3.3 (83) |
3.9 (99) |
3.3 (83) |
3.2 (82) |
3.5 (90) |
4.0 (102) |
3.7 (93) |
4.3 (109) |
43.6 (1,107) |
Average snowfall inches (cm) | 30 (76) |
26 (67) |
13 (33) |
2.0 (5.1) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.3 (0.7) |
6.7 (17) |
29 (73) |
107 (271.8) |
Average precipitation days (≥ 0.2 mm) | 11.8 | 10.6 | 11.6 | 11.6 | 11.8 | 10.9 | 9.4 | 9.0 | 9.0 | 10.5 | 10.3 | 11.9 | 128.4 |
Average snowy days (≥ 0.2 cm) | 10.1 | 8.8 | 5.4 | 1.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 1.6 | 7.2 | 34.6 |
Average relative humidity (%) | 62.3 | 62.0 | 63.1 | 63.0 | 66.7 | 68.5 | 68.4 | 70.8 | 71.8 | 68.5 | 67.5 | 65.4 | 66.5 |
Average dew point °F (°C) | 7.5 (−13.6) |
8.6 (−13.0) |
19.8 (−6.8) |
31.8 (−0.1) |
45.0 (7.2) |
55.2 (12.9) |
61.0 (16.1) |
60.4 (15.8) |
53.8 (12.1) |
41.0 (5.0) |
28.0 (−2.2) |
13.1 (−10.5) |
35.4 (1.9) |
Mean monthly sunshine hours | 163.4 | 168.4 | 213.7 | 227.2 | 267.3 | 286.5 | 300.9 | 277.3 | 237.1 | 206.3 | 143.2 | 142.3 | 2,633.6 |
Percent possible sunshine | 56 | 57 | 58 | 57 | 59 | 63 | 65 | 64 | 63 | 60 | 49 | 50 | 59 |
Average ultraviolet index | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 8 | 6 | 4 | 2 | 1 | 5 |
Source 1: NOAA (relative humidity, dew point and sun 1961−1990) [4] [6] [7] | |||||||||||||
Source 2: Weather Atlas (UV) [8] |
Nantucket | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Nantucket, Massachusetts ( Nantucket Memorial Airport) 1991–2020 normals, extremes 1948–present | |||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 54 (12) |
52 (11) |
61 (16) |
81 (27) |
84 (29) |
91 (33) |
91 (33) |
100 (38) |
86 (30) |
81 (27) |
68 (20) |
54 (12) |
100 (38) |
Mean maximum °F (°C) | 44.2 (6.8) |
41.7 (5.4) |
51.4 (10.8) |
64.6 (18.1) |
75.4 (24.1) |
81.1 (27.3) |
84.0 (28.9) |
83.5 (28.6) |
78.6 (25.9) |
71.1 (21.7) |
58.5 (14.7) |
48.9 (9.4) |
86.4 (30.2) |
Mean daily maximum °F (°C) | 30.6 (−0.8) |
31.1 (−0.5) |
38.8 (3.8) |
50.4 (10.2) |
60.6 (15.9) |
68.7 (20.4) |
75.4 (24.1) |
75.7 (24.3) |
70.3 (21.3) |
60.1 (15.6) |
47.5 (8.6) |
36.1 (2.3) |
53.8 (12.1) |
Daily mean °F (°C) | 24.1 (−4.4) |
24.4 (−4.2) |
32.5 (0.3) |
43.7 (6.5) |
53.8 (12.1) |
62.2 (16.8) |
69.1 (20.6) |
69.1 (20.6) |
63.7 (17.6) |
53.4 (11.9) |
41.0 (5.0) |
29.7 (−1.3) |
47.2 (8.5) |
Mean daily minimum °F (°C) | 17.6 (−8.0) |
18.0 (−7.8) |
26.1 (−3.3) |
37.0 (2.8) |
46.9 (8.3) |
55.8 (13.2) |
62.6 (17.0) |
62.4 (16.9) |
57.0 (13.9) |
46.8 (8.2) |
34.5 (1.4) |
23.2 (−4.9) |
40.7 (4.8) |
Mean minimum °F (°C) | 1.0 (−17.2) |
4.6 (−15.2) |
12.4 (−10.9) |
27.0 (−2.8) |
35.8 (2.1) |
46.6 (8.1) |
54.1 (12.3) |
52.5 (11.4) |
44.6 (7.0) |
33.1 (0.6) |
21.0 (−6.1) |
9.0 (−12.8) |
−0.8 (−18.2) |
Record low °F (°C) | −11 (−24) |
−11 (−24) |
1 (−17) |
18 (−8) |
28 (−2) |
36 (2) |
46 (8) |
39 (4) |
34 (1) |
19 (−7) |
10 (−12) |
−11 (−24) |
−11 (−24) |
Average precipitation inches (mm) | 3.2 (81) |
2.8 (72) |
3.9 (98) |
3.6 (91) |
3.0 (76) |
3.0 (76) |
2.7 (69) |
3.0 (76) |
3.6 (91) |
4.4 (112) |
3.8 (96) |
3.9 (100) |
40.9 (1,038) |
Average snowfall inches (cm) | 24 (62) |
23 (58) |
15 (38) |
3.1 (8) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.1 (0.2) |
6.7 (17) |
19 (49) |
90.9 (232.2) |
Average extreme snow depth inches (cm) | 10 (26) |
13 (32) |
9.8 (25) |
1.2 (3) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
3.1 (8) |
5.9 (15) |
13 (34) |
Average precipitation days (≥ 0.1 mm) | 11.6 | 10.2 | 10.5 | 11.9 | 11.7 | 11.6 | 11.9 | 13.1 | 12.5 | 13.1 | 10.9 | 12.4 | 141.4 |
Average snowy days (≥ 0.1 cm) | 8.8 | 7.0 | 4.7 | 1.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.3 | 6.5 | 31 |
Source: NOAA (snow/snow days/snow depth 1948–1973) [10] [11] |
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Climate data for Providence, Rhode Island ( T. F. Green Airport), 1991–2020 normals, extremes 1904-present | |||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 61 (16) |
63 (17) |
84 (29) |
97 (36) |
97 (36) |
99 (37) |
102 (39) |
104 (40) |
100 (38) |
86 (30) |
75 (24) |
68 (20) |
104 (40) |
Mean maximum °F (°C) | 49.6 (9.8) |
48.9 (9.4) |
61.7 (16.5) |
77.5 (25.3) |
87.3 (30.7) |
91.6 (33.1) |
94.8 (34.9) |
93.6 (34.2) |
87.6 (30.9) |
77.2 (25.1) |
64.8 (18.2) |
52.5 (11.4) |
96.6 (35.9) |
Mean daily maximum °F (°C) | 29.3 (−1.5) |
31.5 (−0.3) |
42.3 (5.7) |
57.0 (13.9) |
68.9 (20.5) |
77.7 (25.4) |
83.7 (28.7) |
82.2 (27.9) |
74.8 (23.8) |
62.1 (16.7) |
47.8 (8.8) |
34.3 (1.3) |
57.6 (14.2) |
Daily mean °F (°C) | 21.2 (−6.0) |
23.0 (−5.0) |
33.4 (0.8) |
47.5 (8.6) |
59.2 (15.1) |
68.2 (20.1) |
74.5 (23.6) |
73.0 (22.8) |
65.7 (18.7) |
52.5 (11.4) |
39.0 (3.9) |
26.4 (−3.1) |
48.6 (9.2) |
Mean daily minimum °F (°C) | 13.1 (−10.5) |
14.5 (−9.7) |
24.8 (−4.0) |
37.8 (3.2) |
49.3 (9.6) |
58.8 (14.9) |
65.1 (18.4) |
63.9 (17.7) |
56.5 (13.6) |
43.3 (6.3) |
30.4 (−0.9) |
18.7 (−7.4) |
39.7 (4.3) |
Mean minimum °F (°C) | −4.9 (−20.5) |
−1.7 (−18.7) |
9.7 (−12.4) |
26.8 (−2.9) |
38.1 (3.4) |
47.1 (8.4) |
56.1 (13.4) |
54.3 (12.4) |
43.2 (6.2) |
29.8 (−1.2) |
16.3 (−8.7) |
3.4 (−15.9) |
−7.1 (−21.7) |
Record low °F (°C) | −22 (−30) |
−26 (−32) |
−4 (−20) |
9 (−13) |
28 (−2) |
39 (4) |
48 (9) |
39 (4) |
32 (0) |
18 (−8) |
1 (−17) |
−20 (−29) |
−26 (−32) |
Average precipitation inches (mm) | 4.0 (101) |
3.4 (87) |
4.9 (124) |
4.3 (109) |
3.4 (86) |
3.8 (97) |
2.9 (74) |
3.6 (91) |
4.2 (106) |
4.2 (106) |
4.3 (108) |
4.6 (118) |
47.6 (1,207) |
Average snowfall inches (cm) | 34 (86) |
26 (67) |
18 (46) |
1.6 (4) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.4 (1) |
3.5 (9) |
31 (79) |
114.5 (292) |
Average extreme snow depth inches (cm) | 10 (26) |
12 (31) |
9.4 (24) |
0.8 (2) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
1.2 (3) |
6.3 (16) |
15 (38) |
Average precipitation days (≥ 0.2 mm) | 11.2 | 10.3 | 11.6 | 11.7 | 12.2 | 10.8 | 9.3 | 9.1 | 9.1 | 10.2 | 9.6 | 11.9 | 127 |
Average snowy days (≥ 0.2 cm) | 8.7 | 7.4 | 5.7 | 0.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 2.6 | 7.4 | 32.7 |
Average relative humidity (%) | 63.9 | 63.0 | 62.9 | 61.4 | 66.6 | 70.1 | 71.0 | 72.5 | 73.0 | 70.2 | 68.9 | 67.0 | 67.5 |
Average dew point °F (°C) | 7.3 (−13.7) |
8.4 (−13.1) |
19.6 (−6.9) |
31.3 (−0.4) |
45.0 (7.2) |
55.6 (13.1) |
61.5 (16.4) |
61.0 (16.1) |
53.8 (12.1) |
40.8 (4.9) |
27.9 (−2.3) |
13.1 (−10.5) |
35.4 (1.9) |
Mean monthly sunshine hours | 171.7 | 172.6 | 215.6 | 225.1 | 254.9 | 274.1 | 290.6 | 262.8 | 233.0 | 208.7 | 148.0 | 148.6 | 2,605.7 |
Percent possible sunshine | 58 | 58 | 58 | 56 | 57 | 60 | 63 | 61 | 62 | 61 | 50 | 52 | 58 |
Average ultraviolet index | 1 | 2 | 4 | 6 | 7 | 8 | 8 | 8 | 6 | 4 | 2 | 1 | 5 |
[ citation needed] |
Hartford | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Bradley International Airport, Connecticut (1991–2020 normals, extremes 1905-present) | |||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 63 (17) |
68 (20) |
84 (29) |
95 (35) |
99 (37) |
100 (38) |
102 (39) |
102 (39) |
100 (38) |
90 (32) |
77 (25) |
66 (19) |
102 (39) |
Mean maximum °F (°C) | 48.0 (8.9) |
48.7 (9.3) |
62.8 (17.1) |
80.4 (26.9) |
90.3 (32.4) |
93.2 (34.0) |
95.9 (35.5) |
94.3 (34.6) |
89.6 (32.0) |
78.4 (25.8) |
65.1 (18.4) |
51.1 (10.6) |
97.7 (36.5) |
Mean daily maximum °F (°C) | 26.8 (−2.9) |
29.5 (−1.4) |
41.9 (5.5) |
58.6 (14.8) |
71.8 (22.1) |
79.9 (26.6) |
85.3 (29.6) |
83.3 (28.5) |
75.7 (24.3) |
61.7 (16.5) |
46.0 (7.8) |
31.6 (−0.2) |
57.7 (14.3) |
Daily mean °F (°C) | 18.1 (−7.7) |
20.7 (−6.3) |
32.4 (0.2) |
47.7 (8.7) |
60.1 (15.6) |
68.9 (20.5) |
74.3 (23.5) |
72.5 (22.5) |
64.8 (18.2) |
51.3 (10.7) |
36.9 (2.7) |
23.5 (−4.7) |
47.6 (8.7) |
Mean daily minimum °F (°C) | 9.9 (−12.3) |
11.7 (−11.3) |
22.8 (−5.1) |
36.7 (2.6) |
48.4 (9.1) |
57.7 (14.3) |
63.3 (17.4) |
61.7 (16.5) |
53.8 (12.1) |
40.6 (4.8) |
27.7 (−2.4) |
15.6 (−9.1) |
37.5 (3.0) |
Mean minimum °F (°C) | −9.9 (−23.3) |
−7.1 (−21.7) |
6.1 (−14.4) |
24.4 (−4.2) |
34.7 (1.5) |
45.0 (7.2) |
53.1 (11.7) |
50.2 (10.1) |
38.5 (3.6) |
25.9 (−3.4) |
12.4 (−10.9) |
−1.3 (−18.5) |
−12.5 (−24.7) |
Record low °F (°C) | −35 (−37) |
−33 (−36) |
−11 (−24) |
7 (−14) |
28 (−2) |
37 (3) |
45 (7) |
36 (2) |
30 (−1) |
16 (−9) |
−4 (−20) |
−27 (−33) |
−35 (−37) |
Average precipitation inches (mm) | 3.3 (83) |
3.1 (80) |
3.8 (97) |
3.9 (99) |
3.8 (96) |
4.3 (109) |
4.2 (106) |
4.2 (107) |
4.4 (112) |
4.5 (115) |
3.5 (89) |
4.1 (104) |
47.1 (1,197) |
Average snowfall inches (cm) | 28 (70) |
27 (68) |
17 (44) |
1.6 (4) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.8 (2) |
4.7 (12) |
30 (76) |
109.1 (276) |
Average extreme snow depth inches (cm) | 15 (38) |
18 (46) |
15 (37) |
0.8 (2) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
2.0 (5) |
8.3 (21) |
20 (51) |
Average precipitation days (≥ 0.2 mm) | 10.9 | 10.5 | 11.2 | 11.5 | 12.3 | 11.8 | 10.7 | 10.4 | 9.2 | 10.5 | 9.9 | 11.5 | 130.4 |
Average snowy days (≥ 0.2 cm) | 9.1 | 8.2 | 4.8 | 0.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 2.9 | 8.0 | 34.1 |
Average relative humidity (%) | 63.9 | 63.0 | 60.4 | 58.0 | 63.0 | 67.3 | 68.0 | 70.6 | 72.9 | 69.2 | 68.3 | 68.0 | 66.1 |
Average dew point °F (°C) | 4.6 (−15.2) |
6.8 (−14.0) |
18.0 (−7.8) |
30.6 (−0.8) |
45.0 (7.2) |
55.6 (13.1) |
61.0 (16.1) |
60.1 (15.6) |
53.1 (11.7) |
39.0 (3.9) |
25.9 (−3.4) |
10.8 (−11.8) |
34.2 (1.2) |
Mean monthly sunshine hours | 169.8 | 176.1 | 213.9 | 228.2 | 258.6 | 273.4 | 293.1 | 269.6 | 223.6 | 199.4 | 139.4 | 139.5 | 2,584.6 |
Percent possible sunshine | 58 | 59 | 58 | 57 | 57 | 60 | 64 | 63 | 60 | 58 | 47 | 49 | 58 |
Average ultraviolet index | 1 | 2 | 4 | 6 | 7 | 8 | 8 | 8 | 6 | 4 | 2 | 1 | 5 |
[ citation needed] |
Albany | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Albany International Airport, New York (1991–2020 normals, [c] extremes 1874–present [d]) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 63 (17) |
64 (18) |
84 (29) |
91 (33) |
97 (36) |
100 (38) |
104 (40) |
102 (39) |
100 (38) |
90 (32) |
77 (25) |
63 (17) |
104 (40) |
Mean maximum °F (°C) | 45.5 (7.5) |
45.5 (7.5) |
60.4 (15.8) |
79.2 (26.2) |
87.8 (31.0) |
91.9 (33.3) |
92.7 (33.7) |
90.7 (32.6) |
87.1 (30.6) |
75.9 (24.4) |
62.2 (16.8) |
47.5 (8.6) |
94.5 (34.7) |
Mean daily maximum °F (°C) | 23.7 (−4.6) |
27.0 (−2.8) |
39.9 (4.4) |
57.4 (14.1) |
71.2 (21.8) |
79.3 (26.3) |
83.8 (28.8) |
82.0 (27.8) |
74.5 (23.6) |
59.7 (15.4) |
43.9 (6.6) |
29.1 (−1.6) |
56.0 (13.3) |
Daily mean °F (°C) | 15.4 (−9.2) |
17.8 (−7.9) |
30.4 (−0.9) |
46.2 (7.9) |
59.5 (15.3) |
68.4 (20.2) |
73.0 (22.8) |
71.4 (21.9) |
63.5 (17.5) |
49.6 (9.8) |
35.1 (1.7) |
21.4 (−5.9) |
46.0 (7.8) |
Mean daily minimum °F (°C) | 7.0 (−13.9) |
8.6 (−13.0) |
20.7 (−6.3) |
35.1 (1.7) |
48.0 (8.9) |
57.4 (14.1) |
62.4 (16.9) |
60.6 (15.9) |
52.5 (11.4) |
39.4 (4.1) |
26.2 (−3.2) |
13.6 (−10.2) |
36.0 (2.2) |
Mean minimum °F (°C) | −15.0 (−26.1) |
−11.4 (−24.1) |
2.5 (−16.4) |
21.9 (−5.6) |
33.8 (1.0) |
43.3 (6.3) |
51.4 (10.8) |
48.9 (9.4) |
37.6 (3.1) |
25.2 (−3.8) |
10.6 (−11.9) |
−4.4 (−20.2) |
−17.3 (−27.4) |
Record low °F (°C) | −36 (−38) |
−31 (−35) |
−26 (−32) |
7 (−14) |
27 (−3) |
36 (2) |
39 (4) |
34 (1) |
25 (−4) |
14 (−10) |
−17 (−27) |
−31 (−35) |
−36 (−38) |
Average precipitation inches (mm) | 2.6 (66) |
2.3 (58) |
3.1 (78) |
3.1 (79) |
3.4 (87) |
4.1 (103) |
4.6 (116) |
3.8 (96) |
3.7 (95) |
3.9 (98) |
3.0 (76) |
3.3 (83) |
40.9 (1,035) |
Average snowfall inches (cm) | 30 (76) |
23 (59) |
16 (40) |
2.4 (6) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.4 (1) |
9.4 (24) |
29 (74) |
110.2 (280) |
Average precipitation days (≥ 0.2 mm) | 12.7 | 10.6 | 11.8 | 12.2 | 12.7 | 12.2 | 11.4 | 11.0 | 9.7 | 11.2 | 11.1 | 12.6 | 139.2 |
Average snowy days (≥ 0.2 cm) | 12.1 | 9.2 | 5.7 | 1.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 4.1 | 10.0 | 42.8 |
Average relative humidity (%) | 71.1 | 68.5 | 64.8 | 61.2 | 65.5 | 69.5 | 70.5 | 74.1 | 75.7 | 72.4 | 73.1 | 73.9 | 70.0 |
Average dew point °F (°C) | 3.9 (−15.6) |
5.5 (−14.7) |
17.2 (−8.2) |
30.4 (−0.9) |
45.0 (7.2) |
55.0 (12.8) |
60.3 (15.7) |
59.4 (15.2) |
52.3 (11.3) |
38.5 (3.6) |
25.7 (−3.5) |
10.4 (−12.0) |
33.6 (0.9) |
Mean monthly sunshine hours | 141.1 | 158.5 | 200.3 | 218.9 | 248.9 | 262.2 | 289.2 | 253.2 | 210.5 | 168.8 | 100.7 | 108.3 | 2,360.6 |
Percent possible sunshine | 48 | 54 | 54 | 54 | 55 | 57 | 62 | 59 | 56 | 49 | 34 | 38 | 53 |
Average ultraviolet index | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 3 | 2 | 1 | 5 |
Source 1: NOAA (relative humidity, dew point, and sun 1961–1990) [15] [16] [17] | |||||||||||||
Source 2: Weather Atlas [18] |
Syracuse | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Syracuse Hancock International Airport, New York (1991–2020 normals, [e] extremes 1902–present [f]) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 61 (16) |
66 (19) |
82 (28) |
90 (32) |
97 (36) |
100 (38) |
102 (39) |
100 (38) |
99 (37) |
86 (30) |
75 (24) |
63 (17) |
102 (39) |
Mean maximum °F (°C) | 48.0 (8.9) |
45.3 (7.4) |
61.5 (16.4) |
78.8 (26.0) |
87.8 (31.0) |
91.2 (32.9) |
92.8 (33.8) |
91.4 (33.0) |
88.3 (31.3) |
77.7 (25.4) |
63.3 (17.4) |
50.2 (10.1) |
94.3 (34.6) |
Mean daily maximum °F (°C) | 22.6 (−5.2) |
24.6 (−4.1) |
37.0 (2.8) |
54.7 (12.6) |
69.3 (20.7) |
77.4 (25.2) |
81.7 (27.6) |
80.2 (26.8) |
73.0 (22.8) |
58.3 (14.6) |
43.0 (6.1) |
28.0 (−2.2) |
54.2 (12.3) |
Daily mean °F (°C) | 15.1 (−9.4) |
16.5 (−8.6) |
28.4 (−2.0) |
44.4 (6.9) |
58.3 (14.6) |
66.9 (19.4) |
71.8 (22.1) |
70.3 (21.3) |
63.0 (17.2) |
49.5 (9.7) |
35.1 (1.7) |
21.4 (−5.9) |
45.1 (7.3) |
Mean daily minimum °F (°C) | 7.5 (−13.6) |
8.4 (−13.1) |
19.8 (−6.8) |
34.3 (1.3) |
47.3 (8.5) |
56.7 (13.7) |
62.1 (16.7) |
60.4 (15.8) |
52.7 (11.5) |
40.6 (4.8) |
27.3 (−2.6) |
14.7 (−9.6) |
36.0 (2.2) |
Mean minimum °F (°C) | −15.2 (−26.2) |
−11.9 (−24.4) |
0.0 (−17.8) |
21.4 (−5.9) |
34.2 (1.2) |
43.9 (6.6) |
52.0 (11.1) |
49.3 (9.6) |
37.9 (3.3) |
27.0 (−2.8) |
8.4 (−13.1) |
−5.4 (−20.8) |
−18.6 (−28.1) |
Record low °F (°C) | −35 (−37) |
−35 (−37) |
−22 (−30) |
5 (−15) |
25 (−4) |
34 (1) |
45 (7) |
37 (3) |
25 (−4) |
16 (−9) |
−6 (−21) |
−35 (−37) |
−35 (−37) |
Average precipitation inches (mm) | 2.6 (66) |
2.4 (62) |
3.0 (77) |
3.5 (88) |
3.4 (87) |
3.5 (90) |
3.9 (98) |
3.7 (94) |
3.4 (86) |
3.9 (99) |
3.2 (82) |
3.3 (83) |
39.8 (1,012) |
Average snowfall inches (cm) | 38 (96) |
30 (77) |
24 (60) |
3.5 (9) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.4 (1) |
14 (35) |
39 (98) |
148.9 (376) |
Average extreme snow depth inches (cm) | 22 (57) |
31 (79) |
29 (73) |
3.5 (9) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
4.7 (12) |
15 (38) |
33 (85) |
Average precipitation days (≥ 0.2 mm) | 18.9 | 16.6 | 15.5 | 14.5 | 13.2 | 12.0 | 11.7 | 10.7 | 11.1 | 15.1 | 15.9 | 18.5 | 173.7 |
Average snowy days (≥ 0.2 cm) | 17.8 | 15.2 | 10.1 | 2.5 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 5.9 | 16.6 | 68.8 |
Average relative humidity (%) | 73.2 | 72.3 | 69.6 | 65.2 | 67.1 | 69.9 | 70.5 | 74.9 | 76.4 | 74.3 | 75.4 | 76.8 | 72.1 |
Average dew point °F (°C) | 6.3 (−14.3) |
7.3 (−13.7) |
18.7 (−7.4) |
31.5 (−0.3) |
45.1 (7.3) |
55.0 (12.8) |
59.9 (15.5) |
59.7 (15.4) |
53.1 (11.7) |
39.9 (4.4) |
27.3 (−2.6) |
12.7 (−10.7) |
34.7 (1.5) |
Mean monthly sunshine hours | 102.8 | 116.7 | 172.5 | 204.4 | 243.1 | 260.6 | 289.3 | 247.1 | 193.0 | 144.3 | 76.7 | 69.0 | 2,119.5 |
Percent possible sunshine | 35 | 40 | 47 | 51 | 53 | 57 | 62 | 57 | 51 | 42 | 26 | 25 | 48 |
Source: NOAA (relative humidity, dew point, and sun 1961–1990) [21] [22] [23] |
Buffalo | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Buffalo ( Buffalo Niagara International Airport), 1991–2020 normals, [g] extremes 1871–present [h] | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 63 (17) |
63 (17) |
77 (25) |
91 (33) |
93 (34) |
97 (36) |
99 (37) |
99 (37) |
99 (37) |
90 (32) |
75 (24) |
64 (18) |
99 (37) |
Mean maximum °F (°C) | 47.5 (8.6) |
45.5 (7.5) |
60.6 (15.9) |
76.1 (24.5) |
84.4 (29.1) |
88.2 (31.2) |
89.4 (31.9) |
88.5 (31.4) |
86.4 (30.2) |
76.1 (24.5) |
62.1 (16.7) |
47.8 (8.8) |
91.6 (33.1) |
Mean daily maximum °F (°C) | 23.2 (−4.9) |
24.3 (−4.3) |
36.3 (2.4) |
52.9 (11.6) |
67.5 (19.7) |
75.6 (24.2) |
80.2 (26.8) |
79.0 (26.1) |
72.3 (22.4) |
57.7 (14.3) |
42.4 (5.8) |
28.2 (−2.1) |
53.3 (11.8) |
Daily mean °F (°C) | 16.5 (−8.6) |
17.4 (−8.1) |
28.8 (−1.8) |
43.9 (6.6) |
57.9 (14.4) |
66.9 (19.4) |
71.8 (22.1) |
70.3 (21.3) |
63.3 (17.4) |
49.8 (9.9) |
35.6 (2.0) |
22.5 (−5.3) |
45.4 (7.4) |
Mean daily minimum °F (°C) | 10.0 (−12.2) |
10.6 (−11.9) |
21.0 (−6.1) |
34.7 (1.5) |
48.4 (9.1) |
58.1 (14.5) |
63.1 (17.3) |
61.7 (16.5) |
54.5 (12.5) |
42.1 (5.6) |
28.8 (−1.8) |
16.5 (−8.6) |
37.5 (3.0) |
Mean minimum °F (°C) | −8.1 (−22.3) |
−7.2 (−21.8) |
3.9 (−15.6) |
22.8 (−5.1) |
35.6 (2.0) |
45.7 (7.6) |
52.9 (11.6) |
51.1 (10.6) |
41.0 (5.0) |
28.9 (−1.7) |
15.1 (−9.4) |
−0.6 (−18.1) |
−11.7 (−24.3) |
Record low °F (°C) | −26 (−32) |
−29 (−34) |
−13 (−25) |
3 (−16) |
25 (−4) |
36 (2) |
43 (6) |
37 (3) |
32 (0) |
18 (−8) |
−4 (−20) |
−18 (−28) |
−29 (−34) |
Average precipitation inches (mm) | 3.3 (85) |
2.5 (63) |
2.9 (73) |
3.4 (86) |
3.4 (86) |
3.4 (86) |
3.2 (82) |
3.2 (82) |
4.1 (104) |
4.0 (102) |
3.5 (89) |
3.7 (95) |
40.6 (1,033) |
Average snowfall inches (cm) | 35 (88) |
26 (66) |
18 (46) |
3.1 (8) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
1.2 (3) |
13 (34) |
37 (94) |
133.3 (339) |
Average extreme snow depth inches (cm) | 19.3 (48.9) |
22.3 (56.7) |
22.4 (57.0) |
1.4 (3.5) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.1) |
4.9 (12.4) |
13.4 (34.1) |
23.2 (59.0) |
Average precipitation days (≥ 0.2 mm) | 19.2 | 15.8 | 14.8 | 13.4 | 12.8 | 11.9 | 10.8 | 10.0 | 10.9 | 14.1 | 14.4 | 17.7 | 165.8 |
Average snowy days (≥ 0.2 cm) | 18.4 | 16.5 | 9.1 | 3.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 6.7 | 16.2 | 70.7 |
Average relative humidity (%) | 76.0 | 75.9 | 73.3 | 67.8 | 67.2 | 68.6 | 68.1 | 72.1 | 74.0 | 72.9 | 75.8 | 77.6 | 72.4 |
Average dew point °F (°C) | 7.9 (−13.4) |
8.6 (−13.0) |
19.8 (−6.8) |
31.6 (−0.2) |
44.2 (6.8) |
54.1 (12.3) |
59.0 (15.0) |
58.8 (14.9) |
52.5 (11.4) |
39.9 (4.4) |
27.3 (−2.6) |
13.6 (−10.2) |
34.8 (1.6) |
Mean monthly sunshine hours | 91.3 | 108.0 | 163.7 | 204.7 | 258.3 | 287.1 | 306.7 | 266.4 | 207.6 | 159.4 | 84.4 | 69.0 | 2,206.6 |
Percent possible sunshine | 31 | 37 | 44 | 51 | 57 | 63 | 66 | 62 | 55 | 47 | 29 | 25 | 49 |
Average ultraviolet index | 1 | 2 | 4 | 6 | 7 | 8 | 8 | 8 | 6 | 4 | 2 | 1 | 5 |
Source 1: NOAA (relative humidity and sun 1961–1990) [25] [26] [27] | |||||||||||||
Source 2: Weather Atlas [28] |
Portland, Maine Weatherbox NOAA txt
was invoked but never defined (see the
help page).Pittsfield Weatherbox NOAA txt
was invoked but never defined (see the
help page).Nantucket Weatherbox NOAA txt
was invoked but never defined (see the
help page).Providence Weatherbox NOAA txt
was invoked but never defined (see the
help page).Hartford Weatherbox NOAA txt
was invoked but never defined (see the
help page).Albany Weatherbox NOAA txt
was invoked but never defined (see the
help page).Syracuse Weatherbox NOAA txt
was invoked but never defined (see the
help page).Buffalo Weatherbox NOAA txt
was invoked but never defined (see the
help page).New York | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Record high °F (°C) | 63 (17) |
70 (21) |
81 (27) |
95 (35) |
99 (37) |
100 (38) |
106 (41) |
104 (40) |
102 (39) |
91 (33) |
79 (26) |
66 (19) |
106 (41) |
Mean maximum °F (°C) | 51.4 (10.8) |
51.6 (10.9) |
64.9 (18.3) |
81.1 (27.3) |
88.5 (31.4) |
92.1 (33.4) |
95.7 (35.4) |
93.4 (34.1) |
89.1 (31.7) |
77.9 (25.5) |
65.3 (18.5) |
54.0 (12.2) |
97.0 (36.1) |
Mean daily maximum °F (°C) | 30.6 (−0.8) |
33.3 (0.7) |
44.4 (6.9) |
60.1 (15.6) |
71.4 (21.9) |
79.7 (26.5) |
84.9 (29.4) |
83.3 (28.5) |
76.3 (24.6) |
62.8 (17.1) |
48.6 (9.2) |
35.2 (1.8) |
59.2 (15.1) |
Daily mean °F (°C) | 24.6 (−4.1) |
27.0 (−2.8) |
37.4 (3.0) |
52.0 (11.1) |
63.1 (17.3) |
72.0 (22.2) |
77.5 (25.3) |
76.1 (24.5) |
69.3 (20.7) |
56.1 (13.4) |
42.6 (5.9) |
30.0 (−1.1) |
52.3 (11.3) |
Mean daily minimum °F (°C) | 18.9 (−7.3) |
20.5 (−6.4) |
30.4 (−0.9) |
43.7 (6.5) |
55.0 (12.8) |
64.4 (18.0) |
70.2 (21.2) |
68.9 (20.5) |
62.2 (16.8) |
49.6 (9.8) |
36.7 (2.6) |
24.8 (−4.0) |
45.4 (7.5) |
Mean minimum °F (°C) | 0.9 (−17.3) |
3.7 (−15.7) |
14.4 (−9.8) |
30.9 (−0.6) |
43.9 (6.6) |
52.7 (11.5) |
61.9 (16.6) |
60.3 (15.7) |
50.2 (10.1) |
36.7 (2.6) |
22.3 (−5.4) |
9.0 (−12.8) |
−1.3 (−18.5) |
Record low °F (°C) | −15 (−26) |
−24 (−31) |
−2 (−19) |
10 (−12) |
32 (0) |
45 (7) |
52 (11) |
50 (10) |
39 (4) |
27 (−3) |
0 (−18) |
−22 (−30) |
−24 (−31) |
Average precipitation inches (mm) | 3.6 (92) |
3.2 (81) |
4.3 (109) |
4.1 (104) |
4.0 (101) |
4.5 (115) |
4.6 (117) |
4.6 (116) |
4.3 (109) |
4.4 (111) |
3.6 (91) |
4.4 (111) |
49.6 (1,257) |
Average snowfall inches (cm) | 30 (77) |
26 (66) |
10 (26) |
0.8 (2) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.1) |
3.2 (8.1) |
28 (72) |
98 (251.2) |
Average precipitation days (≥ 0.2 mm) | 10.8 | 10.0 | 11.1 | 11.4 | 11.5 | 11.2 | 10.5 | 10.0 | 8.8 | 9.5 | 9.2 | 11.4 | 125.4 |
Average snowy days (≥ 0.2 cm) | 8.0 | 7.8 | 3.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 1.8 | 6.7 | 27.5 |
Average relative humidity (%) | 61.5 | 60.2 | 58.5 | 55.3 | 62.7 | 65.2 | 64.2 | 66.0 | 67.8 | 65.6 | 64.6 | 64.1 | 63.0 |
Average dew point °F (°C) | 9.0 (−12.8) |
10.0 (−12.2) |
20.5 (−6.4) |
32.2 (0.1) |
47.3 (8.5) |
57.4 (14.1) |
61.9 (16.6) |
62.1 (16.7) |
55.6 (13.1) |
42.3 (5.7) |
28.6 (−1.9) |
15.6 (−9.1) |
36.9 (2.7) |
Mean monthly sunshine hours | 162.7 | 163.1 | 212.5 | 225.6 | 256.6 | 257.3 | 268.2 | 268.2 | 219.3 | 211.2 | 151.0 | 139.0 | 2,534.7 |
Percent possible sunshine | 54 | 55 | 57 | 57 | 57 | 57 | 59 | 63 | 59 | 61 | 51 | 48 | 57 |
Average ultraviolet index | 2 | 3 | 4 | 6 | 7 | 8 | 8 | 8 | 6 | 4 | 2 | 1 | 5 |
Source 1: NOAA (relative humidity and sun 1961–1990; dew point 1965–1984) [3] [4] [5] [6] | |||||||||||||
Source 2: Weather Atlas
[7]
See Climate of New York City for additional climate information from the outer boroughs. |
Scranton | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Record high °F (°C) | 61 (16) |
66 (19) |
79 (26) |
91 (33) |
93 (34) |
99 (37) |
102 (39) |
102 (39) |
100 (38) |
90 (32) |
75 (24) |
63 (17) |
102 (39) |
Mean maximum °F (°C) | 48 (9) |
48 (9) |
63 (17) |
79 (26) |
88 (31) |
90 (32) |
93 (34) |
91 (33) |
88 (31) |
77 (25) |
64 (18) |
52 (11) |
93 (34) |
Mean daily maximum °F (°C) | 26.8 (−2.9) |
29.8 (−1.2) |
42.3 (5.7) |
59.4 (15.2) |
72.1 (22.3) |
79.9 (26.6) |
84.6 (29.2) |
82.4 (28.0) |
75.0 (23.9) |
61.3 (16.3) |
45.9 (7.7) |
31.3 (−0.4) |
57.6 (14.2) |
Daily mean °F (°C) | 19.0 (−7.2) |
21.4 (−5.9) |
32.9 (0.5) |
48.4 (9.1) |
61.0 (16.1) |
69.1 (20.6) |
73.8 (23.2) |
71.8 (22.1) |
64.6 (18.1) |
51.4 (10.8) |
37.2 (2.9) |
24.3 (−4.3) |
47.9 (8.8) |
Mean daily minimum °F (°C) | 11.3 (−11.5) |
12.9 (−10.6) |
23.5 (−4.7) |
37.6 (3.1) |
49.6 (9.8) |
58.1 (14.5) |
62.8 (17.1) |
61.2 (16.2) |
54.0 (12.2) |
41.5 (5.3) |
28.9 (−1.7) |
17.2 (−8.2) |
38.2 (3.5) |
Mean minimum °F (°C) | −8 (−22) |
−6 (−21) |
5 (−15) |
23 (−5) |
36 (2) |
45 (7) |
52 (11) |
48 (9) |
39 (4) |
27 (−3) |
12 (−11) |
0 (−18) |
−11 (−24) |
Record low °F (°C) | −29 (−34) |
−27 (−33) |
−9 (−23) |
7 (−14) |
27 (−3) |
34 (1) |
43 (6) |
37 (3) |
28 (−2) |
18 (−8) |
0 (−18) |
−22 (−30) |
−29 (−34) |
Average precipitation inches (mm) | 2.6 (66) |
2.1 (53) |
2.8 (70) |
3.3 (83) |
3.3 (83) |
3.8 (97) |
3.6 (92) |
3.9 (98) |
4.1 (105) |
3.7 (94) |
2.8 (72) |
2.8 (71) |
38.8 (984) |
Average snowfall inches (cm) | 23 (58) |
18 (45) |
14 (36) |
1.2 (3) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.9 (2.4) |
5.5 (14) |
21 (53) |
83.6 (211.4) |
Average precipitation days (≥ 0.2 mm) | 12.6 | 11.4 | 11.8 | 12.2 | 12.9 | 12.9 | 11.1 | 11.1 | 10.0 | 10.7 | 10.3 | 12.1 | 139.1 |
Average snowy days (≥ 0.2 cm) | 10.7 | 9.4 | 5.8 | 1.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 2.7 | 8.3 | 38.6 |
Average relative humidity (%) | 70.1 | 67.5 | 63.3 | 60.4 | 64.6 | 70.5 | 71.1 | 73.8 | 75.2 | 71.6 | 71.8 | 72.5 | 69.4 |
Average dew point °F (°C) | 7.2 (−13.8) |
8.2 (−13.2) |
19.0 (−7.2) |
31.3 (−0.4) |
45.3 (7.4) |
55.9 (13.3) |
60.4 (15.8) |
59.9 (15.5) |
53.4 (11.9) |
39.6 (4.2) |
26.8 (−2.9) |
13.3 (−10.4) |
35.0 (1.7) |
Mean monthly sunshine hours | 130.3 | 143.7 | 185.7 | 210.5 | 246.9 | 269.7 | 285.7 | 257.2 | 200.2 | 173.3 | 104.3 | 95.9 | 2,303.4 |
Percent possible sunshine | 44 | 48 | 50 | 53 | 55 | 60 | 62 | 60 | 54 | 50 | 35 | 33 | 52 |
Source: NOAA (relative humidity and dew point 1964–1990, sun 1961–1990) [10] [11] [12] |
Pittsburgh | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Pittsburgh ( Pittsburgh International Airport), 1991–2020 normals, [e] extremes 1874–present [f] | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 66 (19) |
70 (21) |
79 (26) |
88 (31) |
95 (35) |
99 (37) |
102 (39) |
102 (39) |
102 (39) |
90 (32) |
77 (25) |
64 (18) |
102 (39) |
Mean maximum °F (°C) | 52.5 (11.4) |
54.1 (12.3) |
68.2 (20.1) |
79.7 (26.5) |
86.7 (30.4) |
90.3 (32.4) |
91.2 (32.9) |
90.3 (32.4) |
88.2 (31.2) |
78.1 (25.6) |
65.5 (18.6) |
53.6 (12.0) |
92.7 (33.7) |
Mean daily maximum °F (°C) | 27.3 (−2.6) |
30.6 (−0.8) |
43.7 (6.5) |
60.6 (15.9) |
72.0 (22.2) |
79.3 (26.3) |
82.9 (28.3) |
81.7 (27.6) |
75.0 (23.9) |
61.3 (16.3) |
45.5 (7.5) |
31.6 (−0.2) |
57.6 (14.2) |
Daily mean °F (°C) | 19.8 (−6.8) |
22.5 (−5.3) |
34.3 (1.3) |
49.6 (9.8) |
61.2 (16.2) |
69.4 (20.8) |
73.2 (22.9) |
71.8 (22.1) |
64.9 (18.3) |
51.6 (10.9) |
37.2 (2.9) |
24.6 (−4.1) |
48.3 (9.1) |
Mean daily minimum °F (°C) | 12.4 (−10.9) |
14.2 (−9.9) |
25.0 (−3.9) |
38.8 (3.8) |
50.5 (10.3) |
59.4 (15.2) |
63.3 (17.4) |
62.1 (16.7) |
54.9 (12.7) |
41.9 (5.5) |
28.9 (−1.7) |
17.8 (−7.9) |
39.1 (3.9) |
Mean minimum °F (°C) | −8.0 (−22.2) |
−4.0 (−20.0) |
6.3 (−14.3) |
23.5 (−4.7) |
35.6 (2.0) |
45.1 (7.3) |
52.5 (11.4) |
51.1 (10.6) |
41.2 (5.1) |
27.7 (−2.4) |
13.8 (−10.1) |
0.7 (−17.4) |
−10.5 (−23.6) |
Record low °F (°C) | −31 (−35) |
−29 (−34) |
−11 (−24) |
9 (−13) |
27 (−3) |
34 (1) |
43 (6) |
39 (4) |
30 (−1) |
14 (−10) |
−6 (−21) |
−20 (−29) |
−31 (−35) |
Average precipitation inches (mm) | 3.0 (75) |
2.6 (67) |
3.1 (80) |
3.3 (84) |
3.8 (97) |
4.1 (105) |
4.3 (108) |
3.5 (89) |
3.3 (84) |
2.8 (72) |
2.9 (73) |
2.8 (72) |
39.5 (1,006) |
Average snowfall inches (cm) | 31.6 (80.3) |
22.3 (56.7) |
10.7 (27.3) |
1.8 (4.6) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.7 (1.8) |
6.9 (17.6) |
22.9 (58.2) |
96.9 (246.5) |
Average precipitation days (≥ 0.1 mm) | 16.8 | 13.9 | 14.0 | 13.9 | 13.5 | 12.4 | 11.2 | 10.5 | 9.8 | 11.1 | 12.0 | 14.6 | 153.7 |
Average snowy days (≥ 0.1 cm) | 14.2 | 10.3 | 6.9 | 1.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 4.3 | 10.0 | 47.8 |
Average relative humidity (%) | 69.9 | 67.3 | 64.1 | 59.8 | 63.4 | 66.2 | 68.8 | 71.2 | 72.0 | 68.3 | 70.2 | 71.9 | 67.8 |
Average dew point °F (°C) | 8.2 (−13.2) |
9.9 (−12.3) |
21.4 (−5.9) |
32.7 (0.4) |
45.9 (7.7) |
55.2 (12.9) |
60.1 (15.6) |
59.5 (15.3) |
53.4 (11.9) |
39.0 (3.9) |
27.0 (−2.8) |
14.2 (−9.9) |
35.5 (2.0) |
Mean monthly sunshine hours | 93.9 | 108.5 | 155.4 | 182.8 | 217.4 | 242.2 | 254.9 | 228.4 | 196.7 | 167.3 | 99.4 | 74.4 | 2,021.3 |
Percent possible sunshine | 31 | 36 | 42 | 46 | 49 | 54 | 56 | 54 | 53 | 48 | 33 | 26 | 45 |
Average ultraviolet index | 2 | 2 | 2 | 4 | 6 | 6 | 6 | 5 | 4 | 3 | 2 | 1 | 4 |
Source 1: NOAA (relative humidity, dew point and sun 1961–1990) [14] [15] [16] [17] | |||||||||||||
Source 2: Weather Atlas (UV) [18] |
Philadelphia | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Record high °F (°C) | 64 (18) |
70 (21) |
82 (28) |
93 (34) |
97 (36) |
102 (39) |
104 (40) |
106 (41) |
102 (39) |
95 (35) |
79 (26) |
64 (18) |
106 (41) |
Mean maximum °F (°C) | 54.3 (12.4) |
54.5 (12.5) |
68.4 (20.2) |
82.6 (28.1) |
90.1 (32.3) |
94.8 (34.9) |
97.2 (36.2) |
94.8 (34.9) |
90.7 (32.6) |
80.8 (27.1) |
66.9 (19.4) |
55.2 (12.9) |
98.1 (36.7) |
Mean daily maximum °F (°C) | 32.4 (0.2) |
35.2 (1.8) |
47.5 (8.6) |
63.0 (17.2) |
74.5 (23.6) |
83.1 (28.4) |
87.8 (31.0) |
85.8 (29.9) |
79.0 (26.1) |
65.5 (18.6) |
50.5 (10.3) |
37.0 (2.8) |
61.8 (16.5) |
Daily mean °F (°C) | 24.6 (−4.1) |
27.0 (−2.8) |
38.1 (3.4) |
52.7 (11.5) |
64.2 (17.9) |
73.6 (23.1) |
78.6 (25.9) |
76.8 (24.9) |
70.0 (21.1) |
56.5 (13.6) |
42.1 (5.6) |
29.7 (−1.3) |
52.8 (11.6) |
Mean daily minimum °F (°C) | 17.1 (−8.3) |
18.5 (−7.5) |
28.9 (−1.7) |
42.4 (5.8) |
54.1 (12.3) |
63.9 (17.7) |
69.6 (20.9) |
67.8 (19.9) |
61.0 (16.1) |
47.5 (8.6) |
33.4 (0.8) |
22.3 (−5.4) |
43.9 (6.6) |
Mean minimum °F (°C) | 1.8 (−16.8) |
4.6 (−15.2) |
15.4 (−9.2) |
31.3 (−0.4) |
43.2 (6.2) |
53.2 (11.8) |
62.2 (16.8) |
60.3 (15.7) |
49.5 (9.7) |
35.2 (1.8) |
21.0 (−6.1) |
10.0 (−12.2) |
−0.4 (−18.0) |
Record low °F (°C) | −17 (−27) |
−20 (−29) |
0 (−18) |
12 (−11) |
28 (−2) |
45 (7) |
52 (11) |
45 (7) |
36 (2) |
23 (−5) |
3 (−16) |
−15 (−26) |
−20 (−29) |
Average precipitation inches (mm) | 3.1 (80) |
2.8 (70) |
4.0 (101) |
3.5 (88) |
3.3 (85) |
4.1 (103) |
4.4 (111) |
4.3 (109) |
4.4 (112) |
3.5 (88) |
2.9 (74) |
4.0 (101) |
44.1 (1,120) |
Average snowfall inches (cm) | 26.8 (68.0) |
22.2 (56.3) |
9.1 (23.1) |
0.5 (1.2) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
1.5 (3.8) |
27.1 (68.9) |
87.2 (221.3) |
Average precipitation days (≥ 0.2 mm) | 11.0 | 9.7 | 10.9 | 10.9 | 11.0 | 10.3 | 10.1 | 8.9 | 9.3 | 9.1 | 8.6 | 11.0 | 120.8 |
Average snowy days (≥ 0.2 cm) | 7.6 | 6.5 | 3.1 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.3 | 6.0 | 24.7 |
Average relative humidity (%) | 66.2 | 63.6 | 61.7 | 60.4 | 65.4 | 67.8 | 69.6 | 70.4 | 71.6 | 70.8 | 68.4 | 67.7 | 67.0 |
Average dew point °F (°C) | 10.8 (−11.8) |
12.0 (−11.1) |
23.2 (−4.9) |
35.2 (1.8) |
49.5 (9.7) |
59.2 (15.1) |
64.6 (18.1) |
63.7 (17.6) |
57.2 (14.0) |
43.9 (6.6) |
30.2 (−1.0) |
16.5 (−8.6) |
38.8 (3.8) |
Mean monthly sunshine hours | 155.7 | 154.7 | 202.8 | 217.0 | 245.1 | 271.2 | 275.6 | 260.1 | 219.3 | 204.5 | 154.7 | 137.7 | 2,498.4 |
Percent possible sunshine | 52 | 52 | 55 | 55 | 55 | 61 | 61 | 61 | 59 | 59 | 52 | 47 | 56 |
Average ultraviolet index | 2 | 3 | 4 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 2 | 5 |
Source 1: NOAA (relative humidity, dew point and sun 1961–1990) [23] [24] [21] | |||||||||||||
Source 2: Weather Atlas (UV index) [25] |
Washington, D.C. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Record high °F (°C) | 70 (21) |
75 (24) |
88 (31) |
93 (34) |
99 (37) |
104 (40) |
106 (41) |
106 (41) |
104 (40) |
97 (36) |
81 (27) |
70 (21) |
106 (41) |
Mean maximum °F (°C) | 57.6 (14.2) |
59.2 (15.1) |
72.0 (22.2) |
84.6 (29.2) |
91.0 (32.8) |
95.7 (35.4) |
98.1 (36.7) |
96.4 (35.8) |
91.9 (33.3) |
82.8 (28.2) |
69.4 (20.8) |
58.1 (14.5) |
99.1 (37.3) |
Mean daily maximum °F (°C) | 35.8 (2.1) |
39.4 (4.1) |
51.1 (10.6) |
66.2 (19.0) |
76.5 (24.7) |
85.1 (29.5) |
89.6 (32.0) |
87.8 (31.0) |
80.8 (27.1) |
67.6 (19.8) |
52.9 (11.6) |
39.7 (4.3) |
64.4 (18.0) |
Daily mean °F (°C) | 28.6 (−1.9) |
30.9 (−0.6) |
42.3 (5.7) |
56.5 (13.6) |
67.3 (19.6) |
76.3 (24.6) |
81.0 (27.2) |
79.3 (26.3) |
72.3 (22.4) |
59.0 (15.0) |
44.4 (6.9) |
32.7 (0.4) |
55.9 (13.3) |
Mean daily minimum °F (°C) | 21.0 (−6.1) |
22.8 (−5.1) |
33.3 (0.7) |
46.6 (8.1) |
57.9 (14.4) |
67.5 (19.7) |
72.3 (22.4) |
71.1 (21.7) |
64.0 (17.8) |
50.4 (10.2) |
36.3 (2.4) |
25.5 (−3.6) |
47.4 (8.6) |
Mean minimum °F (°C) | 5.4 (−14.8) |
7.9 (−13.4) |
18.0 (−7.8) |
33.1 (0.6) |
45.5 (7.5) |
55.8 (13.2) |
63.9 (17.7) |
62.1 (16.7) |
51.3 (10.7) |
36.9 (2.7) |
23.4 (−4.8) |
12.4 (−10.9) |
3.4 (−15.9) |
Record low °F (°C) | −24 (−31) |
−24 (−31) |
−2 (−19) |
14 (−10) |
34 (1) |
43 (6) |
52 (11) |
48 (9) |
36 (2) |
25 (−4) |
5 (−15) |
−22 (−30) |
−24 (−31) |
Average precipitation inches (mm) | 2.9 (73) |
2.6 (67) |
3.5 (89) |
3.2 (82) |
3.9 (100) |
4.2 (107) |
4.3 (110) |
3.3 (83) |
3.9 (100) |
3.7 (93) |
2.9 (74) |
3.4 (87) |
41.8 (1,065) |
Average snowfall inches (cm) | 17 (42) |
13 (33) |
3.1 (8) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
1.6 (4) |
12 (30) |
46.7 (117) |
Average precipitation days (≥ 0.2 mm) | 9.7 | 9.3 | 11.0 | 10.8 | 11.6 | 10.6 | 10.5 | 8.7 | 8.7 | 8.3 | 8.4 | 10.1 | 117.7 |
Average snowy days (≥ 0.2 cm) | 6.8 | 5.7 | 2.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.1 | 4.0 | 19.7 |
Average relative humidity (%) | 62.1 | 60.5 | 58.6 | 58.0 | 64.5 | 65.8 | 66.9 | 69.3 | 69.7 | 67.4 | 64.7 | 64.1 | 64.3 |
Average dew point °F (°C) | 12.7 (−10.7) |
14.5 (−9.7) |
25.9 (−3.4) |
37.9 (3.3) |
52.3 (11.3) |
61.5 (16.4) |
66.0 (18.9) |
65.8 (18.8) |
59.5 (15.3) |
45.7 (7.6) |
31.6 (−0.2) |
18.1 (−7.7) |
41.0 (5.0) |
Mean monthly sunshine hours | 144.6 | 151.8 | 204.0 | 228.2 | 260.5 | 283.2 | 280.5 | 263.1 | 225.0 | 203.6 | 150.2 | 133.0 | 2,527.7 |
Mean daily daylight hours | 9.8 | 10.8 | 12.0 | 13.3 | 14.3 | 14.9 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 | 12.2 |
Percent possible sunshine | 48 | 50 | 55 | 57 | 59 | 64 | 62 | 62 | 60 | 59 | 50 | 45 | 57 |
Average ultraviolet index | 2 | 3 | 5 | 7 | 8 | 9 | 9 | 8 | 7 | 4 | 3 | 2 | 6 |
Source 1: NOAA (relative humidity, dew point and sun 1961−1990) [28] [26] [29] [30] | |||||||||||||
Source 2: Weather Atlas (UV and daylight hours) [31] |
Richmond | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Richmond International Airport, Virginia (1991–2020 normals, [k] extremes 1887–present [l]) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 72 (22) |
73 (23) |
88 (31) |
95 (35) |
100 (38) |
104 (40) |
106 (41) |
108 (42) |
102 (39) |
97 (36) |
81 (27) |
72 (22) |
108 (42) |
Mean maximum °F (°C) | 61.2 (16.2) |
63.7 (17.6) |
75.0 (23.9) |
85.8 (29.9) |
91.6 (33.1) |
96.6 (35.9) |
98.6 (37.0) |
96.6 (35.9) |
92.8 (33.8) |
84.6 (29.2) |
71.8 (22.1) |
62.8 (17.1) |
99.7 (37.6) |
Mean daily maximum °F (°C) | 38.8 (3.8) |
42.6 (5.9) |
54.1 (12.3) |
68.5 (20.3) |
77.7 (25.4) |
85.6 (29.8) |
89.4 (31.9) |
87.4 (30.8) |
81.1 (27.3) |
69.1 (20.6) |
55.0 (12.8) |
42.4 (5.8) |
66.0 (18.9) |
Daily mean °F (°C) | 29.3 (−1.5) |
32.0 (0.0) |
43.0 (6.1) |
56.7 (13.7) |
66.7 (19.3) |
75.0 (23.9) |
79.3 (26.3) |
77.5 (25.3) |
71.2 (21.8) |
58.3 (14.6) |
44.2 (6.8) |
32.7 (0.4) |
55.5 (13.1) |
Mean daily minimum °F (°C) | 19.8 (−6.8) |
21.4 (−5.9) |
31.8 (−0.1) |
44.6 (7.0) |
55.8 (13.2) |
64.6 (18.1) |
69.3 (20.7) |
67.6 (19.8) |
61.2 (16.2) |
47.1 (8.4) |
33.4 (0.8) |
23.2 (−4.9) |
45.0 (7.2) |
Mean minimum °F (°C) | 2.1 (−16.6) |
7.0 (−13.9) |
16.2 (−8.8) |
30.0 (−1.1) |
42.1 (5.6) |
53.4 (11.9) |
61.0 (16.1) |
59.4 (15.2) |
48.7 (9.3) |
32.5 (0.3) |
18.9 (−7.3) |
9.1 (−12.7) |
0.1 (−17.7) |
Record low °F (°C) | −20 (−29) |
−18 (−28) |
5 (−15) |
18 (−8) |
30 (−1) |
39 (4) |
52 (11) |
46 (8) |
36 (2) |
19 (−7) |
5 (−15) |
−11 (−24) |
−20 (−29) |
Average precipitation inches (mm) | 3.2 (82) |
2.6 (66) |
4.0 (102) |
3.2 (81) |
4.0 (102) |
4.6 (118) |
4.4 (111) |
4.9 (124) |
4.6 (117) |
3.4 (86) |
3.1 (78) |
3.5 (89) |
45.5 (1,156) |
Average snowfall inches (cm) | 14 (36) |
9.1 (23) |
3.5 (9) |
0.4 (1) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
1.2 (3) |
9.8 (25) |
38 (97) |
Average precipitation days (≥ 0.1 mm) | 10.0 | 9.0 | 10.8 | 10.5 | 11.1 | 10.6 | 11.4 | 9.4 | 9.3 | 8.1 | 8.4 | 10.0 | 118.6 |
Average snowy days (≥ 0.1 cm) | 4.9 | 3.7 | 2.0 | 0.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.6 | 3.9 | 17 |
Average relative humidity (%) | 67.9 | 65.6 | 63.0 | 60.8 | 69.5 | 72.2 | 74.8 | 77.2 | 77.0 | 73.8 | 69.1 | 68.9 | 70.0 |
Average dew point °F (°C) | 15.8 (−9.0) |
17.4 (−8.1) |
28.2 (−2.1) |
39.7 (4.3) |
54.1 (12.3) |
63.0 (17.2) |
67.6 (19.8) |
67.3 (19.6) |
60.6 (15.9) |
46.6 (8.1) |
32.7 (0.4) |
20.5 (−6.4) |
42.8 (6.0) |
Mean monthly sunshine hours | 172.5 | 179.7 | 233.3 | 261.6 | 288.0 | 306.4 | 301.4 | 278.9 | 237.9 | 222.8 | 183.5 | 163.0 | 2,829 |
Percent possible sunshine | 56 | 59 | 63 | 66 | 65 | 69 | 67 | 66 | 64 | 64 | 60 | 55 | 64 |
Average ultraviolet index | 2 | 3 | 5 | 7 | 8 | 9 | 9 | 9 | 7 | 5 | 3 | 2 | 6 |
Source 1: NOAA (relative humidity and sunshine hours 1961–1990) [33] [34] [35] | |||||||||||||
Source 2: Weather Atlas [36] |
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Portland, Maine | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Portland International Jetport, Maine (1991–2020 normals, extremes 1871-present) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 57 (14) |
59 (15) |
82 (28) |
90 (32) |
97 (36) |
99 (37) |
102 (39) |
102 (39) |
97 (36) |
86 (30) |
70 (21) |
63 (17) |
102 (39) |
Mean maximum °F (°C) | 42.8 (6.0) |
42.4 (5.8) |
55.8 (13.2) |
72.7 (22.6) |
85.5 (29.7) |
89.2 (31.8) |
91.6 (33.1) |
90.0 (32.2) |
86.5 (30.3) |
73.6 (23.1) |
60.1 (15.6) |
46.6 (8.1) |
93.6 (34.2) |
Mean daily maximum °F (°C) | 23.4 (−4.8) |
26.1 (−3.3) |
36.9 (2.7) |
52.0 (11.1) |
64.2 (17.9) |
73.6 (23.1) |
79.5 (26.4) |
78.6 (25.9) |
71.1 (21.7) |
57.7 (14.3) |
43.0 (6.1) |
29.3 (−1.5) |
53.0 (11.6) |
Daily mean °F (°C) | 15.1 (−9.4) |
17.2 (−8.2) |
28.8 (−1.8) |
42.8 (6.0) |
54.9 (12.7) |
64.2 (17.9) |
70.3 (21.3) |
69.3 (20.7) |
61.5 (16.4) |
48.6 (9.2) |
34.5 (1.4) |
21.4 (−5.9) |
44.1 (6.7) |
Mean daily minimum °F (°C) | 6.6 (−14.1) |
8.2 (−13.2) |
20.7 (−6.3) |
33.6 (0.9) |
45.5 (7.5) |
55.0 (12.8) |
61.2 (16.2) |
59.7 (15.4) |
52.2 (11.2) |
39.2 (4.0) |
26.2 (−3.2) |
13.5 (−10.3) |
35.1 (1.7) |
Mean minimum °F (°C) | −15.2 (−26.2) |
−11.2 (−24.0) |
1.0 (−17.2) |
21.9 (−5.6) |
33.1 (0.6) |
43.3 (6.3) |
51.6 (10.9) |
48.6 (9.2) |
37.0 (2.8) |
24.6 (−4.1) |
10.6 (−11.9) |
−5.1 (−20.6) |
−18.0 (−27.8) |
Record low °F (°C) | −35 (−37) |
−47 (−44) |
−26 (−32) |
7 (−14) |
23 (−5) |
34 (1) |
39 (4) |
34 (1) |
23 (−5) |
14 (−10) |
−11 (−24) |
−29 (−34) |
−47 (−44) |
Average precipitation inches (mm) | 3.5 (89) |
3.5 (90) |
4.1 (104) |
4.4 (112) |
3.7 (93) |
4.1 (105) |
3.4 (87) |
3.6 (91) |
3.8 (96) |
5.2 (133) |
4.3 (108) |
4.5 (114) |
48.1 (1,222) |
Average snowfall inches (cm) | 34 (87) |
32 (82) |
22 (55) |
3.5 (9) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.4 (1) |
14 (36) |
34 (87) |
139.9 (357) |
Average extreme snow depth inches (cm) | 19 (49) |
27 (68) |
25 (64) |
3.1 (8) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0.4 (1) |
4.7 (12) |
11 (28) |
28 (70) |
Average precipitation days (≥ 0.2 mm) | 11.2 | 10.2 | 11.3 | 11.1 | 12.5 | 11.7 | 10.8 | 9.4 | 9.3 | 10.9 | 10.7 | 12.3 | 131.4 |
Average snowy days (≥ 0.2 cm) | 10.6 | 9.0 | 7.1 | 2.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 3.5 | 10.0 | 42.8 |
Average relative humidity (%) | 66.8 | 65.2 | 66.3 | 66.8 | 71.1 | 74.7 | 75.3 | 76.3 | 76.7 | 73.9 | 72.6 | 70.2 | 71.3 |
Mean monthly sunshine hours | 164.8 | 172.8 | 205.2 | 213.5 | 243.2 | 259.1 | 282.2 | 267.6 | 229.1 | 195.7 | 138.7 | 140.9 | 2,512.8 |
Percent possible sunshine | 57 | 59 | 55 | 53 | 53 | 56 | 60 | 62 | 61 | 57 | 48 | 51 | 56 |
Average ultraviolet index | 1 | 2 | 3 | 5 | 7 | 8 | 8 | 7 | 5 | 3 | 2 | 1 | 4 |
[ citation needed] |
Pittsfield | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Pittsfield Municipal Airport, MA, 1991–2020 normals, extremes 1925–present | |||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 55 (13) |
64 (18) |
75 (24) |
90 (32) |
93 (34) |
100 (38) |
100 (38) |
100 (38) |
95 (35) |
82 (28) |
73 (23) |
57 (14) |
100 (38) |
Mean daily maximum °F (°C) | 21.0 (−6.1) |
24.1 (−4.4) |
36.3 (2.4) |
53.4 (11.9) |
66.9 (19.4) |
74.7 (23.7) |
79.3 (26.3) |
77.5 (25.3) |
70.3 (21.3) |
56.5 (13.6) |
41.2 (5.1) |
26.4 (−3.1) |
52.3 (11.3) |
Mean daily minimum °F (°C) | 4.8 (−15.1) |
6.1 (−14.4) |
17.8 (−7.9) |
32.0 (0.0) |
44.4 (6.9) |
53.1 (11.7) |
57.9 (14.4) |
56.5 (13.6) |
48.9 (9.4) |
36.7 (2.6) |
23.7 (−4.6) |
11.8 (−11.2) |
32.8 (0.5) |
Record low °F (°C) | −31 (−35) |
−35 (−37) |
−15 (−26) |
9 (−13) |
25 (−4) |
30 (−1) |
39 (4) |
32 (0) |
23 (−5) |
12 (−11) |
−6 (−21) |
−33 (−36) |
−35 (−37) |
Average precipitation inches (mm) | 2.7 (68) |
2.5 (64) |
3.1 (78) |
3.4 (86) |
3.8 (96) |
4.6 (116) |
4.2 (106) |
3.8 (97) |
4.5 (114) |
4.6 (116) |
3.5 (89) |
3.6 (92) |
44.3 (1,122) |
Average snowfall inches (cm) | 28 (71) |
26 (67) |
20 (50) |
4.7 (12) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
2.0 (5) |
9.8 (25) |
33 (85) |
123.5 (315) |
Average precipitation days (≥ .2 mm) | 12 | 12 | 13 | 14 | 14 | 15 | 15 | 15 | 13 | 14 | 12 | 13 | 162 |
Source: Western Regional Climate Center [3] |
Boston | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Record high °F (°C) | 64 (18) |
64 (18) |
84 (29) |
91 (33) |
97 (36) |
100 (38) |
104 (40) |
102 (39) |
102 (39) |
88 (31) |
77 (25) |
66 (19) |
104 (40) |
Mean maximum °F (°C) | 49.3 (9.6) |
48.9 (9.4) |
61.5 (16.4) |
78.1 (25.6) |
88.2 (31.2) |
92.1 (33.4) |
95.0 (35.0) |
93.7 (34.3) |
88.9 (31.6) |
77.7 (25.4) |
64.8 (18.2) |
52.2 (11.2) |
96.4 (35.8) |
Mean daily maximum °F (°C) | 27.9 (−2.3) |
30.0 (−1.1) |
40.1 (4.5) |
54.7 (12.6) |
66.6 (19.2) |
76.3 (24.6) |
82.0 (27.8) |
80.4 (26.9) |
73.0 (22.8) |
60.3 (15.7) |
46.2 (7.9) |
33.3 (0.7) |
55.9 (13.3) |
Daily mean °F (°C) | 20.8 (−6.2) |
22.8 (−5.1) |
32.9 (0.5) |
46.8 (8.2) |
58.5 (14.7) |
68.0 (20.0) |
74.1 (23.4) |
72.7 (22.6) |
65.7 (18.7) |
53.1 (11.7) |
39.4 (4.1) |
26.8 (−2.9) |
48.5 (9.1) |
Mean daily minimum °F (°C) | 14.2 (−9.9) |
15.6 (−9.1) |
25.7 (−3.5) |
39.0 (3.9) |
50.4 (10.2) |
59.7 (15.4) |
66.0 (18.9) |
65.1 (18.4) |
58.8 (14.9) |
45.7 (7.6) |
32.5 (0.3) |
20.1 (−6.6) |
41.1 (5.0) |
Mean minimum °F (°C) | −4.2 (−20.1) |
−0.8 (−18.2) |
10.2 (−12.1) |
29.1 (−1.6) |
41.2 (5.1) |
49.6 (9.8) |
58.6 (14.8) |
57.7 (14.3) |
46.8 (8.2) |
33.3 (0.7) |
19.0 (−7.2) |
4.1 (−15.5) |
−6.3 (−21.3) |
Record low °F (°C) | −22 (−30) |
−27 (−33) |
−13 (−25) |
9 (−13) |
30 (−1) |
41 (5) |
50 (10) |
46 (8) |
34 (1) |
23 (−5) |
−8 (−22) |
−26 (−32) |
−27 (−33) |
Average precipitation inches (mm) | 3.4 (86) |
3.2 (82) |
4.2 (106) |
3.6 (92) |
3.3 (83) |
3.9 (99) |
3.3 (83) |
3.2 (82) |
3.5 (90) |
4.0 (102) |
3.7 (93) |
4.3 (109) |
43.6 (1,107) |
Average snowfall inches (cm) | 30 (76) |
26 (67) |
13 (33) |
2.0 (5.1) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.3 (0.7) |
6.7 (17) |
29 (73) |
107 (271.8) |
Average precipitation days (≥ 0.2 mm) | 11.8 | 10.6 | 11.6 | 11.6 | 11.8 | 10.9 | 9.4 | 9.0 | 9.0 | 10.5 | 10.3 | 11.9 | 128.4 |
Average snowy days (≥ 0.2 cm) | 10.1 | 8.8 | 5.4 | 1.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 1.6 | 7.2 | 34.6 |
Average relative humidity (%) | 62.3 | 62.0 | 63.1 | 63.0 | 66.7 | 68.5 | 68.4 | 70.8 | 71.8 | 68.5 | 67.5 | 65.4 | 66.5 |
Average dew point °F (°C) | 7.5 (−13.6) |
8.6 (−13.0) |
19.8 (−6.8) |
31.8 (−0.1) |
45.0 (7.2) |
55.2 (12.9) |
61.0 (16.1) |
60.4 (15.8) |
53.8 (12.1) |
41.0 (5.0) |
28.0 (−2.2) |
13.1 (−10.5) |
35.4 (1.9) |
Mean monthly sunshine hours | 163.4 | 168.4 | 213.7 | 227.2 | 267.3 | 286.5 | 300.9 | 277.3 | 237.1 | 206.3 | 143.2 | 142.3 | 2,633.6 |
Percent possible sunshine | 56 | 57 | 58 | 57 | 59 | 63 | 65 | 64 | 63 | 60 | 49 | 50 | 59 |
Average ultraviolet index | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 8 | 6 | 4 | 2 | 1 | 5 |
Source 1: NOAA (relative humidity, dew point and sun 1961−1990) [4] [6] [7] | |||||||||||||
Source 2: Weather Atlas (UV) [8] |
Nantucket | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Nantucket, Massachusetts ( Nantucket Memorial Airport) 1991–2020 normals, extremes 1948–present | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 54 (12) |
52 (11) |
61 (16) |
81 (27) |
84 (29) |
91 (33) |
91 (33) |
100 (38) |
86 (30) |
81 (27) |
68 (20) |
54 (12) |
100 (38) |
Mean maximum °F (°C) | 44.2 (6.8) |
41.7 (5.4) |
51.4 (10.8) |
64.6 (18.1) |
75.4 (24.1) |
81.1 (27.3) |
84.0 (28.9) |
83.5 (28.6) |
78.6 (25.9) |
71.1 (21.7) |
58.5 (14.7) |
48.9 (9.4) |
86.4 (30.2) |
Mean daily maximum °F (°C) | 30.6 (−0.8) |
31.1 (−0.5) |
38.8 (3.8) |
50.4 (10.2) |
60.6 (15.9) |
68.7 (20.4) |
75.4 (24.1) |
75.7 (24.3) |
70.3 (21.3) |
60.1 (15.6) |
47.5 (8.6) |
36.1 (2.3) |
53.8 (12.1) |
Daily mean °F (°C) | 24.1 (−4.4) |
24.4 (−4.2) |
32.5 (0.3) |
43.7 (6.5) |
53.8 (12.1) |
62.2 (16.8) |
69.1 (20.6) |
69.1 (20.6) |
63.7 (17.6) |
53.4 (11.9) |
41.0 (5.0) |
29.7 (−1.3) |
47.2 (8.5) |
Mean daily minimum °F (°C) | 17.6 (−8.0) |
18.0 (−7.8) |
26.1 (−3.3) |
37.0 (2.8) |
46.9 (8.3) |
55.8 (13.2) |
62.6 (17.0) |
62.4 (16.9) |
57.0 (13.9) |
46.8 (8.2) |
34.5 (1.4) |
23.2 (−4.9) |
40.7 (4.8) |
Mean minimum °F (°C) | 1.0 (−17.2) |
4.6 (−15.2) |
12.4 (−10.9) |
27.0 (−2.8) |
35.8 (2.1) |
46.6 (8.1) |
54.1 (12.3) |
52.5 (11.4) |
44.6 (7.0) |
33.1 (0.6) |
21.0 (−6.1) |
9.0 (−12.8) |
−0.8 (−18.2) |
Record low °F (°C) | −11 (−24) |
−11 (−24) |
1 (−17) |
18 (−8) |
28 (−2) |
36 (2) |
46 (8) |
39 (4) |
34 (1) |
19 (−7) |
10 (−12) |
−11 (−24) |
−11 (−24) |
Average precipitation inches (mm) | 3.2 (81) |
2.8 (72) |
3.9 (98) |
3.6 (91) |
3.0 (76) |
3.0 (76) |
2.7 (69) |
3.0 (76) |
3.6 (91) |
4.4 (112) |
3.8 (96) |
3.9 (100) |
40.9 (1,038) |
Average snowfall inches (cm) | 24 (62) |
23 (58) |
15 (38) |
3.1 (8) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.1 (0.2) |
6.7 (17) |
19 (49) |
90.9 (232.2) |
Average extreme snow depth inches (cm) | 10 (26) |
13 (32) |
9.8 (25) |
1.2 (3) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
3.1 (8) |
5.9 (15) |
13 (34) |
Average precipitation days (≥ 0.1 mm) | 11.6 | 10.2 | 10.5 | 11.9 | 11.7 | 11.6 | 11.9 | 13.1 | 12.5 | 13.1 | 10.9 | 12.4 | 141.4 |
Average snowy days (≥ 0.1 cm) | 8.8 | 7.0 | 4.7 | 1.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 2.3 | 6.5 | 31 |
Source: NOAA (snow/snow days/snow depth 1948–1973) [10] [11] |
Providence | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Providence, Rhode Island ( T. F. Green Airport), 1991–2020 normals, extremes 1904-present | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 61 (16) |
63 (17) |
84 (29) |
97 (36) |
97 (36) |
99 (37) |
102 (39) |
104 (40) |
100 (38) |
86 (30) |
75 (24) |
68 (20) |
104 (40) |
Mean maximum °F (°C) | 49.6 (9.8) |
48.9 (9.4) |
61.7 (16.5) |
77.5 (25.3) |
87.3 (30.7) |
91.6 (33.1) |
94.8 (34.9) |
93.6 (34.2) |
87.6 (30.9) |
77.2 (25.1) |
64.8 (18.2) |
52.5 (11.4) |
96.6 (35.9) |
Mean daily maximum °F (°C) | 29.3 (−1.5) |
31.5 (−0.3) |
42.3 (5.7) |
57.0 (13.9) |
68.9 (20.5) |
77.7 (25.4) |
83.7 (28.7) |
82.2 (27.9) |
74.8 (23.8) |
62.1 (16.7) |
47.8 (8.8) |
34.3 (1.3) |
57.6 (14.2) |
Daily mean °F (°C) | 21.2 (−6.0) |
23.0 (−5.0) |
33.4 (0.8) |
47.5 (8.6) |
59.2 (15.1) |
68.2 (20.1) |
74.5 (23.6) |
73.0 (22.8) |
65.7 (18.7) |
52.5 (11.4) |
39.0 (3.9) |
26.4 (−3.1) |
48.6 (9.2) |
Mean daily minimum °F (°C) | 13.1 (−10.5) |
14.5 (−9.7) |
24.8 (−4.0) |
37.8 (3.2) |
49.3 (9.6) |
58.8 (14.9) |
65.1 (18.4) |
63.9 (17.7) |
56.5 (13.6) |
43.3 (6.3) |
30.4 (−0.9) |
18.7 (−7.4) |
39.7 (4.3) |
Mean minimum °F (°C) | −4.9 (−20.5) |
−1.7 (−18.7) |
9.7 (−12.4) |
26.8 (−2.9) |
38.1 (3.4) |
47.1 (8.4) |
56.1 (13.4) |
54.3 (12.4) |
43.2 (6.2) |
29.8 (−1.2) |
16.3 (−8.7) |
3.4 (−15.9) |
−7.1 (−21.7) |
Record low °F (°C) | −22 (−30) |
−26 (−32) |
−4 (−20) |
9 (−13) |
28 (−2) |
39 (4) |
48 (9) |
39 (4) |
32 (0) |
18 (−8) |
1 (−17) |
−20 (−29) |
−26 (−32) |
Average precipitation inches (mm) | 4.0 (101) |
3.4 (87) |
4.9 (124) |
4.3 (109) |
3.4 (86) |
3.8 (97) |
2.9 (74) |
3.6 (91) |
4.2 (106) |
4.2 (106) |
4.3 (108) |
4.6 (118) |
47.6 (1,207) |
Average snowfall inches (cm) | 34 (86) |
26 (67) |
18 (46) |
1.6 (4) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.4 (1) |
3.5 (9) |
31 (79) |
114.5 (292) |
Average extreme snow depth inches (cm) | 10 (26) |
12 (31) |
9.4 (24) |
0.8 (2) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
1.2 (3) |
6.3 (16) |
15 (38) |
Average precipitation days (≥ 0.2 mm) | 11.2 | 10.3 | 11.6 | 11.7 | 12.2 | 10.8 | 9.3 | 9.1 | 9.1 | 10.2 | 9.6 | 11.9 | 127 |
Average snowy days (≥ 0.2 cm) | 8.7 | 7.4 | 5.7 | 0.7 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 2.6 | 7.4 | 32.7 |
Average relative humidity (%) | 63.9 | 63.0 | 62.9 | 61.4 | 66.6 | 70.1 | 71.0 | 72.5 | 73.0 | 70.2 | 68.9 | 67.0 | 67.5 |
Average dew point °F (°C) | 7.3 (−13.7) |
8.4 (−13.1) |
19.6 (−6.9) |
31.3 (−0.4) |
45.0 (7.2) |
55.6 (13.1) |
61.5 (16.4) |
61.0 (16.1) |
53.8 (12.1) |
40.8 (4.9) |
27.9 (−2.3) |
13.1 (−10.5) |
35.4 (1.9) |
Mean monthly sunshine hours | 171.7 | 172.6 | 215.6 | 225.1 | 254.9 | 274.1 | 290.6 | 262.8 | 233.0 | 208.7 | 148.0 | 148.6 | 2,605.7 |
Percent possible sunshine | 58 | 58 | 58 | 56 | 57 | 60 | 63 | 61 | 62 | 61 | 50 | 52 | 58 |
Average ultraviolet index | 1 | 2 | 4 | 6 | 7 | 8 | 8 | 8 | 6 | 4 | 2 | 1 | 5 |
[ citation needed] |
Hartford | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Bradley International Airport, Connecticut (1991–2020 normals, extremes 1905-present) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 63 (17) |
68 (20) |
84 (29) |
95 (35) |
99 (37) |
100 (38) |
102 (39) |
102 (39) |
100 (38) |
90 (32) |
77 (25) |
66 (19) |
102 (39) |
Mean maximum °F (°C) | 48.0 (8.9) |
48.7 (9.3) |
62.8 (17.1) |
80.4 (26.9) |
90.3 (32.4) |
93.2 (34.0) |
95.9 (35.5) |
94.3 (34.6) |
89.6 (32.0) |
78.4 (25.8) |
65.1 (18.4) |
51.1 (10.6) |
97.7 (36.5) |
Mean daily maximum °F (°C) | 26.8 (−2.9) |
29.5 (−1.4) |
41.9 (5.5) |
58.6 (14.8) |
71.8 (22.1) |
79.9 (26.6) |
85.3 (29.6) |
83.3 (28.5) |
75.7 (24.3) |
61.7 (16.5) |
46.0 (7.8) |
31.6 (−0.2) |
57.7 (14.3) |
Daily mean °F (°C) | 18.1 (−7.7) |
20.7 (−6.3) |
32.4 (0.2) |
47.7 (8.7) |
60.1 (15.6) |
68.9 (20.5) |
74.3 (23.5) |
72.5 (22.5) |
64.8 (18.2) |
51.3 (10.7) |
36.9 (2.7) |
23.5 (−4.7) |
47.6 (8.7) |
Mean daily minimum °F (°C) | 9.9 (−12.3) |
11.7 (−11.3) |
22.8 (−5.1) |
36.7 (2.6) |
48.4 (9.1) |
57.7 (14.3) |
63.3 (17.4) |
61.7 (16.5) |
53.8 (12.1) |
40.6 (4.8) |
27.7 (−2.4) |
15.6 (−9.1) |
37.5 (3.0) |
Mean minimum °F (°C) | −9.9 (−23.3) |
−7.1 (−21.7) |
6.1 (−14.4) |
24.4 (−4.2) |
34.7 (1.5) |
45.0 (7.2) |
53.1 (11.7) |
50.2 (10.1) |
38.5 (3.6) |
25.9 (−3.4) |
12.4 (−10.9) |
−1.3 (−18.5) |
−12.5 (−24.7) |
Record low °F (°C) | −35 (−37) |
−33 (−36) |
−11 (−24) |
7 (−14) |
28 (−2) |
37 (3) |
45 (7) |
36 (2) |
30 (−1) |
16 (−9) |
−4 (−20) |
−27 (−33) |
−35 (−37) |
Average precipitation inches (mm) | 3.3 (83) |
3.1 (80) |
3.8 (97) |
3.9 (99) |
3.8 (96) |
4.3 (109) |
4.2 (106) |
4.2 (107) |
4.4 (112) |
4.5 (115) |
3.5 (89) |
4.1 (104) |
47.1 (1,197) |
Average snowfall inches (cm) | 28 (70) |
27 (68) |
17 (44) |
1.6 (4) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.8 (2) |
4.7 (12) |
30 (76) |
109.1 (276) |
Average extreme snow depth inches (cm) | 15 (38) |
18 (46) |
15 (37) |
0.8 (2) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
0 (0) |
2.0 (5) |
8.3 (21) |
20 (51) |
Average precipitation days (≥ 0.2 mm) | 10.9 | 10.5 | 11.2 | 11.5 | 12.3 | 11.8 | 10.7 | 10.4 | 9.2 | 10.5 | 9.9 | 11.5 | 130.4 |
Average snowy days (≥ 0.2 cm) | 9.1 | 8.2 | 4.8 | 0.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.2 | 2.9 | 8.0 | 34.1 |
Average relative humidity (%) | 63.9 | 63.0 | 60.4 | 58.0 | 63.0 | 67.3 | 68.0 | 70.6 | 72.9 | 69.2 | 68.3 | 68.0 | 66.1 |
Average dew point °F (°C) | 4.6 (−15.2) |
6.8 (−14.0) |
18.0 (−7.8) |
30.6 (−0.8) |
45.0 (7.2) |
55.6 (13.1) |
61.0 (16.1) |
60.1 (15.6) |
53.1 (11.7) |
39.0 (3.9) |
25.9 (−3.4) |
10.8 (−11.8) |
34.2 (1.2) |
Mean monthly sunshine hours | 169.8 | 176.1 | 213.9 | 228.2 | 258.6 | 273.4 | 293.1 | 269.6 | 223.6 | 199.4 | 139.4 | 139.5 | 2,584.6 |
Percent possible sunshine | 58 | 59 | 58 | 57 | 57 | 60 | 64 | 63 | 60 | 58 | 47 | 49 | 58 |
Average ultraviolet index | 1 | 2 | 4 | 6 | 7 | 8 | 8 | 8 | 6 | 4 | 2 | 1 | 5 |
[ citation needed] |
Albany | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Albany International Airport, New York (1991–2020 normals, [c] extremes 1874–present [d]) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 63 (17) |
64 (18) |
84 (29) |
91 (33) |
97 (36) |
100 (38) |
104 (40) |
102 (39) |
100 (38) |
90 (32) |
77 (25) |
63 (17) |
104 (40) |
Mean maximum °F (°C) | 45.5 (7.5) |
45.5 (7.5) |
60.4 (15.8) |
79.2 (26.2) |
87.8 (31.0) |
91.9 (33.3) |
92.7 (33.7) |
90.7 (32.6) |
87.1 (30.6) |
75.9 (24.4) |
62.2 (16.8) |
47.5 (8.6) |
94.5 (34.7) |
Mean daily maximum °F (°C) | 23.7 (−4.6) |
27.0 (−2.8) |
39.9 (4.4) |
57.4 (14.1) |
71.2 (21.8) |
79.3 (26.3) |
83.8 (28.8) |
82.0 (27.8) |
74.5 (23.6) |
59.7 (15.4) |
43.9 (6.6) |
29.1 (−1.6) |
56.0 (13.3) |
Daily mean °F (°C) | 15.4 (−9.2) |
17.8 (−7.9) |
30.4 (−0.9) |
46.2 (7.9) |
59.5 (15.3) |
68.4 (20.2) |
73.0 (22.8) |
71.4 (21.9) |
63.5 (17.5) |
49.6 (9.8) |
35.1 (1.7) |
21.4 (−5.9) |
46.0 (7.8) |
Mean daily minimum °F (°C) | 7.0 (−13.9) |
8.6 (−13.0) |
20.7 (−6.3) |
35.1 (1.7) |
48.0 (8.9) |
57.4 (14.1) |
62.4 (16.9) |
60.6 (15.9) |
52.5 (11.4) |
39.4 (4.1) |
26.2 (−3.2) |
13.6 (−10.2) |
36.0 (2.2) |
Mean minimum °F (°C) | −15.0 (−26.1) |
−11.4 (−24.1) |
2.5 (−16.4) |
21.9 (−5.6) |
33.8 (1.0) |
43.3 (6.3) |
51.4 (10.8) |
48.9 (9.4) |
37.6 (3.1) |
25.2 (−3.8) |
10.6 (−11.9) |
−4.4 (−20.2) |
−17.3 (−27.4) |
Record low °F (°C) | −36 (−38) |
−31 (−35) |
−26 (−32) |
7 (−14) |
27 (−3) |
36 (2) |
39 (4) |
34 (1) |
25 (−4) |
14 (−10) |
−17 (−27) |
−31 (−35) |
−36 (−38) |
Average precipitation inches (mm) | 2.6 (66) |
2.3 (58) |
3.1 (78) |
3.1 (79) |
3.4 (87) |
4.1 (103) |
4.6 (116) |
3.8 (96) |
3.7 (95) |
3.9 (98) |
3.0 (76) |
3.3 (83) |
40.9 (1,035) |
Average snowfall inches (cm) | 30 (76) |
23 (59) |
16 (40) |
2.4 (6) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.4 (1) |
9.4 (24) |
29 (74) |
110.2 (280) |
Average precipitation days (≥ 0.2 mm) | 12.7 | 10.6 | 11.8 | 12.2 | 12.7 | 12.2 | 11.4 | 11.0 | 9.7 | 11.2 | 11.1 | 12.6 | 139.2 |
Average snowy days (≥ 0.2 cm) | 12.1 | 9.2 | 5.7 | 1.4 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.3 | 4.1 | 10.0 | 42.8 |
Average relative humidity (%) | 71.1 | 68.5 | 64.8 | 61.2 | 65.5 | 69.5 | 70.5 | 74.1 | 75.7 | 72.4 | 73.1 | 73.9 | 70.0 |
Average dew point °F (°C) | 3.9 (−15.6) |
5.5 (−14.7) |
17.2 (−8.2) |
30.4 (−0.9) |
45.0 (7.2) |
55.0 (12.8) |
60.3 (15.7) |
59.4 (15.2) |
52.3 (11.3) |
38.5 (3.6) |
25.7 (−3.5) |
10.4 (−12.0) |
33.6 (0.9) |
Mean monthly sunshine hours | 141.1 | 158.5 | 200.3 | 218.9 | 248.9 | 262.2 | 289.2 | 253.2 | 210.5 | 168.8 | 100.7 | 108.3 | 2,360.6 |
Percent possible sunshine | 48 | 54 | 54 | 54 | 55 | 57 | 62 | 59 | 56 | 49 | 34 | 38 | 53 |
Average ultraviolet index | 1 | 2 | 4 | 5 | 7 | 8 | 8 | 7 | 6 | 3 | 2 | 1 | 5 |
Source 1: NOAA (relative humidity, dew point, and sun 1961–1990) [15] [16] [17] | |||||||||||||
Source 2: Weather Atlas [18] |
Syracuse | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Syracuse Hancock International Airport, New York (1991–2020 normals, [e] extremes 1902–present [f]) | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 61 (16) |
66 (19) |
82 (28) |
90 (32) |
97 (36) |
100 (38) |
102 (39) |
100 (38) |
99 (37) |
86 (30) |
75 (24) |
63 (17) |
102 (39) |
Mean maximum °F (°C) | 48.0 (8.9) |
45.3 (7.4) |
61.5 (16.4) |
78.8 (26.0) |
87.8 (31.0) |
91.2 (32.9) |
92.8 (33.8) |
91.4 (33.0) |
88.3 (31.3) |
77.7 (25.4) |
63.3 (17.4) |
50.2 (10.1) |
94.3 (34.6) |
Mean daily maximum °F (°C) | 22.6 (−5.2) |
24.6 (−4.1) |
37.0 (2.8) |
54.7 (12.6) |
69.3 (20.7) |
77.4 (25.2) |
81.7 (27.6) |
80.2 (26.8) |
73.0 (22.8) |
58.3 (14.6) |
43.0 (6.1) |
28.0 (−2.2) |
54.2 (12.3) |
Daily mean °F (°C) | 15.1 (−9.4) |
16.5 (−8.6) |
28.4 (−2.0) |
44.4 (6.9) |
58.3 (14.6) |
66.9 (19.4) |
71.8 (22.1) |
70.3 (21.3) |
63.0 (17.2) |
49.5 (9.7) |
35.1 (1.7) |
21.4 (−5.9) |
45.1 (7.3) |
Mean daily minimum °F (°C) | 7.5 (−13.6) |
8.4 (−13.1) |
19.8 (−6.8) |
34.3 (1.3) |
47.3 (8.5) |
56.7 (13.7) |
62.1 (16.7) |
60.4 (15.8) |
52.7 (11.5) |
40.6 (4.8) |
27.3 (−2.6) |
14.7 (−9.6) |
36.0 (2.2) |
Mean minimum °F (°C) | −15.2 (−26.2) |
−11.9 (−24.4) |
0.0 (−17.8) |
21.4 (−5.9) |
34.2 (1.2) |
43.9 (6.6) |
52.0 (11.1) |
49.3 (9.6) |
37.9 (3.3) |
27.0 (−2.8) |
8.4 (−13.1) |
−5.4 (−20.8) |
−18.6 (−28.1) |
Record low °F (°C) | −35 (−37) |
−35 (−37) |
−22 (−30) |
5 (−15) |
25 (−4) |
34 (1) |
45 (7) |
37 (3) |
25 (−4) |
16 (−9) |
−6 (−21) |
−35 (−37) |
−35 (−37) |
Average precipitation inches (mm) | 2.6 (66) |
2.4 (62) |
3.0 (77) |
3.5 (88) |
3.4 (87) |
3.5 (90) |
3.9 (98) |
3.7 (94) |
3.4 (86) |
3.9 (99) |
3.2 (82) |
3.3 (83) |
39.8 (1,012) |
Average snowfall inches (cm) | 38 (96) |
30 (77) |
24 (60) |
3.5 (9) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.4 (1) |
14 (35) |
39 (98) |
148.9 (376) |
Average extreme snow depth inches (cm) | 22 (57) |
31 (79) |
29 (73) |
3.5 (9) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
4.7 (12) |
15 (38) |
33 (85) |
Average precipitation days (≥ 0.2 mm) | 18.9 | 16.6 | 15.5 | 14.5 | 13.2 | 12.0 | 11.7 | 10.7 | 11.1 | 15.1 | 15.9 | 18.5 | 173.7 |
Average snowy days (≥ 0.2 cm) | 17.8 | 15.2 | 10.1 | 2.5 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 5.9 | 16.6 | 68.8 |
Average relative humidity (%) | 73.2 | 72.3 | 69.6 | 65.2 | 67.1 | 69.9 | 70.5 | 74.9 | 76.4 | 74.3 | 75.4 | 76.8 | 72.1 |
Average dew point °F (°C) | 6.3 (−14.3) |
7.3 (−13.7) |
18.7 (−7.4) |
31.5 (−0.3) |
45.1 (7.3) |
55.0 (12.8) |
59.9 (15.5) |
59.7 (15.4) |
53.1 (11.7) |
39.9 (4.4) |
27.3 (−2.6) |
12.7 (−10.7) |
34.7 (1.5) |
Mean monthly sunshine hours | 102.8 | 116.7 | 172.5 | 204.4 | 243.1 | 260.6 | 289.3 | 247.1 | 193.0 | 144.3 | 76.7 | 69.0 | 2,119.5 |
Percent possible sunshine | 35 | 40 | 47 | 51 | 53 | 57 | 62 | 57 | 51 | 42 | 26 | 25 | 48 |
Source: NOAA (relative humidity, dew point, and sun 1961–1990) [21] [22] [23] |
Buffalo | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Buffalo ( Buffalo Niagara International Airport), 1991–2020 normals, [g] extremes 1871–present [h] | |||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 63 (17) |
63 (17) |
77 (25) |
91 (33) |
93 (34) |
97 (36) |
99 (37) |
99 (37) |
99 (37) |
90 (32) |
75 (24) |
64 (18) |
99 (37) |
Mean maximum °F (°C) | 47.5 (8.6) |
45.5 (7.5) |
60.6 (15.9) |
76.1 (24.5) |
84.4 (29.1) |
88.2 (31.2) |
89.4 (31.9) |
88.5 (31.4) |
86.4 (30.2) |
76.1 (24.5) |
62.1 (16.7) |
47.8 (8.8) |
91.6 (33.1) |
Mean daily maximum °F (°C) | 23.2 (−4.9) |
24.3 (−4.3) |
36.3 (2.4) |
52.9 (11.6) |
67.5 (19.7) |
75.6 (24.2) |
80.2 (26.8) |
79.0 (26.1) |
72.3 (22.4) |
57.7 (14.3) |
42.4 (5.8) |
28.2 (−2.1) |
53.3 (11.8) |
Daily mean °F (°C) | 16.5 (−8.6) |
17.4 (−8.1) |
28.8 (−1.8) |
43.9 (6.6) |
57.9 (14.4) |
66.9 (19.4) |
71.8 (22.1) |
70.3 (21.3) |
63.3 (17.4) |
49.8 (9.9) |
35.6 (2.0) |
22.5 (−5.3) |
45.4 (7.4) |
Mean daily minimum °F (°C) | 10.0 (−12.2) |
10.6 (−11.9) |
21.0 (−6.1) |
34.7 (1.5) |
48.4 (9.1) |
58.1 (14.5) |
63.1 (17.3) |
61.7 (16.5) |
54.5 (12.5) |
42.1 (5.6) |
28.8 (−1.8) |
16.5 (−8.6) |
37.5 (3.0) |
Mean minimum °F (°C) | −8.1 (−22.3) |
−7.2 (−21.8) |
3.9 (−15.6) |
22.8 (−5.1) |
35.6 (2.0) |
45.7 (7.6) |
52.9 (11.6) |
51.1 (10.6) |
41.0 (5.0) |
28.9 (−1.7) |
15.1 (−9.4) |
−0.6 (−18.1) |
−11.7 (−24.3) |
Record low °F (°C) | −26 (−32) |
−29 (−34) |
−13 (−25) |
3 (−16) |
25 (−4) |
36 (2) |
43 (6) |
37 (3) |
32 (0) |
18 (−8) |
−4 (−20) |
−18 (−28) |
−29 (−34) |
Average precipitation inches (mm) | 3.3 (85) |
2.5 (63) |
2.9 (73) |
3.4 (86) |
3.4 (86) |
3.4 (86) |
3.2 (82) |
3.2 (82) |
4.1 (104) |
4.0 (102) |
3.5 (89) |
3.7 (95) |
40.6 (1,033) |
Average snowfall inches (cm) | 35 (88) |
26 (66) |
18 (46) |
3.1 (8) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
1.2 (3) |
13 (34) |
37 (94) |
133.3 (339) |
Average extreme snow depth inches (cm) | 19.3 (48.9) |
22.3 (56.7) |
22.4 (57.0) |
1.4 (3.5) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.1) |
4.9 (12.4) |
13.4 (34.1) |
23.2 (59.0) |
Average precipitation days (≥ 0.2 mm) | 19.2 | 15.8 | 14.8 | 13.4 | 12.8 | 11.9 | 10.8 | 10.0 | 10.9 | 14.1 | 14.4 | 17.7 | 165.8 |
Average snowy days (≥ 0.2 cm) | 18.4 | 16.5 | 9.1 | 3.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.6 | 6.7 | 16.2 | 70.7 |
Average relative humidity (%) | 76.0 | 75.9 | 73.3 | 67.8 | 67.2 | 68.6 | 68.1 | 72.1 | 74.0 | 72.9 | 75.8 | 77.6 | 72.4 |
Average dew point °F (°C) | 7.9 (−13.4) |
8.6 (−13.0) |
19.8 (−6.8) |
31.6 (−0.2) |
44.2 (6.8) |
54.1 (12.3) |
59.0 (15.0) |
58.8 (14.9) |
52.5 (11.4) |
39.9 (4.4) |
27.3 (−2.6) |
13.6 (−10.2) |
34.8 (1.6) |
Mean monthly sunshine hours | 91.3 | 108.0 | 163.7 | 204.7 | 258.3 | 287.1 | 306.7 | 266.4 | 207.6 | 159.4 | 84.4 | 69.0 | 2,206.6 |
Percent possible sunshine | 31 | 37 | 44 | 51 | 57 | 63 | 66 | 62 | 55 | 47 | 29 | 25 | 49 |
Average ultraviolet index | 1 | 2 | 4 | 6 | 7 | 8 | 8 | 8 | 6 | 4 | 2 | 1 | 5 |
Source 1: NOAA (relative humidity and sun 1961–1990) [25] [26] [27] | |||||||||||||
Source 2: Weather Atlas [28] |
Portland, Maine Weatherbox NOAA txt
was invoked but never defined (see the
help page).Pittsfield Weatherbox NOAA txt
was invoked but never defined (see the
help page).Nantucket Weatherbox NOAA txt
was invoked but never defined (see the
help page).Providence Weatherbox NOAA txt
was invoked but never defined (see the
help page).Hartford Weatherbox NOAA txt
was invoked but never defined (see the
help page).Albany Weatherbox NOAA txt
was invoked but never defined (see the
help page).Syracuse Weatherbox NOAA txt
was invoked but never defined (see the
help page).Buffalo Weatherbox NOAA txt
was invoked but never defined (see the
help page).New York | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Record high °F (°C) | 63 (17) |
70 (21) |
81 (27) |
95 (35) |
99 (37) |
100 (38) |
106 (41) |
104 (40) |
102 (39) |
91 (33) |
79 (26) |
66 (19) |
106 (41) |
Mean maximum °F (°C) | 51.4 (10.8) |
51.6 (10.9) |
64.9 (18.3) |
81.1 (27.3) |
88.5 (31.4) |
92.1 (33.4) |
95.7 (35.4) |
93.4 (34.1) |
89.1 (31.7) |
77.9 (25.5) |
65.3 (18.5) |
54.0 (12.2) |
97.0 (36.1) |
Mean daily maximum °F (°C) | 30.6 (−0.8) |
33.3 (0.7) |
44.4 (6.9) |
60.1 (15.6) |
71.4 (21.9) |
79.7 (26.5) |
84.9 (29.4) |
83.3 (28.5) |
76.3 (24.6) |
62.8 (17.1) |
48.6 (9.2) |
35.2 (1.8) |
59.2 (15.1) |
Daily mean °F (°C) | 24.6 (−4.1) |
27.0 (−2.8) |
37.4 (3.0) |
52.0 (11.1) |
63.1 (17.3) |
72.0 (22.2) |
77.5 (25.3) |
76.1 (24.5) |
69.3 (20.7) |
56.1 (13.4) |
42.6 (5.9) |
30.0 (−1.1) |
52.3 (11.3) |
Mean daily minimum °F (°C) | 18.9 (−7.3) |
20.5 (−6.4) |
30.4 (−0.9) |
43.7 (6.5) |
55.0 (12.8) |
64.4 (18.0) |
70.2 (21.2) |
68.9 (20.5) |
62.2 (16.8) |
49.6 (9.8) |
36.7 (2.6) |
24.8 (−4.0) |
45.4 (7.5) |
Mean minimum °F (°C) | 0.9 (−17.3) |
3.7 (−15.7) |
14.4 (−9.8) |
30.9 (−0.6) |
43.9 (6.6) |
52.7 (11.5) |
61.9 (16.6) |
60.3 (15.7) |
50.2 (10.1) |
36.7 (2.6) |
22.3 (−5.4) |
9.0 (−12.8) |
−1.3 (−18.5) |
Record low °F (°C) | −15 (−26) |
−24 (−31) |
−2 (−19) |
10 (−12) |
32 (0) |
45 (7) |
52 (11) |
50 (10) |
39 (4) |
27 (−3) |
0 (−18) |
−22 (−30) |
−24 (−31) |
Average precipitation inches (mm) | 3.6 (92) |
3.2 (81) |
4.3 (109) |
4.1 (104) |
4.0 (101) |
4.5 (115) |
4.6 (117) |
4.6 (116) |
4.3 (109) |
4.4 (111) |
3.6 (91) |
4.4 (111) |
49.6 (1,257) |
Average snowfall inches (cm) | 30 (77) |
26 (66) |
10 (26) |
0.8 (2) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.1) |
3.2 (8.1) |
28 (72) |
98 (251.2) |
Average precipitation days (≥ 0.2 mm) | 10.8 | 10.0 | 11.1 | 11.4 | 11.5 | 11.2 | 10.5 | 10.0 | 8.8 | 9.5 | 9.2 | 11.4 | 125.4 |
Average snowy days (≥ 0.2 cm) | 8.0 | 7.8 | 3.0 | 0.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.1 | 1.8 | 6.7 | 27.5 |
Average relative humidity (%) | 61.5 | 60.2 | 58.5 | 55.3 | 62.7 | 65.2 | 64.2 | 66.0 | 67.8 | 65.6 | 64.6 | 64.1 | 63.0 |
Average dew point °F (°C) | 9.0 (−12.8) |
10.0 (−12.2) |
20.5 (−6.4) |
32.2 (0.1) |
47.3 (8.5) |
57.4 (14.1) |
61.9 (16.6) |
62.1 (16.7) |
55.6 (13.1) |
42.3 (5.7) |
28.6 (−1.9) |
15.6 (−9.1) |
36.9 (2.7) |
Mean monthly sunshine hours | 162.7 | 163.1 | 212.5 | 225.6 | 256.6 | 257.3 | 268.2 | 268.2 | 219.3 | 211.2 | 151.0 | 139.0 | 2,534.7 |
Percent possible sunshine | 54 | 55 | 57 | 57 | 57 | 57 | 59 | 63 | 59 | 61 | 51 | 48 | 57 |
Average ultraviolet index | 2 | 3 | 4 | 6 | 7 | 8 | 8 | 8 | 6 | 4 | 2 | 1 | 5 |
Source 1: NOAA (relative humidity and sun 1961–1990; dew point 1965–1984) [3] [4] [5] [6] | |||||||||||||
Source 2: Weather Atlas
[7]
See Climate of New York City for additional climate information from the outer boroughs. |
Scranton | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Record high °F (°C) | 61 (16) |
66 (19) |
79 (26) |
91 (33) |
93 (34) |
99 (37) |
102 (39) |
102 (39) |
100 (38) |
90 (32) |
75 (24) |
63 (17) |
102 (39) |
Mean maximum °F (°C) | 48 (9) |
48 (9) |
63 (17) |
79 (26) |
88 (31) |
90 (32) |
93 (34) |
91 (33) |
88 (31) |
77 (25) |
64 (18) |
52 (11) |
93 (34) |
Mean daily maximum °F (°C) | 26.8 (−2.9) |
29.8 (−1.2) |
42.3 (5.7) |
59.4 (15.2) |
72.1 (22.3) |
79.9 (26.6) |
84.6 (29.2) |
82.4 (28.0) |
75.0 (23.9) |
61.3 (16.3) |
45.9 (7.7) |
31.3 (−0.4) |
57.6 (14.2) |
Daily mean °F (°C) | 19.0 (−7.2) |
21.4 (−5.9) |
32.9 (0.5) |
48.4 (9.1) |
61.0 (16.1) |
69.1 (20.6) |
73.8 (23.2) |
71.8 (22.1) |
64.6 (18.1) |
51.4 (10.8) |
37.2 (2.9) |
24.3 (−4.3) |
47.9 (8.8) |
Mean daily minimum °F (°C) | 11.3 (−11.5) |
12.9 (−10.6) |
23.5 (−4.7) |
37.6 (3.1) |
49.6 (9.8) |
58.1 (14.5) |
62.8 (17.1) |
61.2 (16.2) |
54.0 (12.2) |
41.5 (5.3) |
28.9 (−1.7) |
17.2 (−8.2) |
38.2 (3.5) |
Mean minimum °F (°C) | −8 (−22) |
−6 (−21) |
5 (−15) |
23 (−5) |
36 (2) |
45 (7) |
52 (11) |
48 (9) |
39 (4) |
27 (−3) |
12 (−11) |
0 (−18) |
−11 (−24) |
Record low °F (°C) | −29 (−34) |
−27 (−33) |
−9 (−23) |
7 (−14) |
27 (−3) |
34 (1) |
43 (6) |
37 (3) |
28 (−2) |
18 (−8) |
0 (−18) |
−22 (−30) |
−29 (−34) |
Average precipitation inches (mm) | 2.6 (66) |
2.1 (53) |
2.8 (70) |
3.3 (83) |
3.3 (83) |
3.8 (97) |
3.6 (92) |
3.9 (98) |
4.1 (105) |
3.7 (94) |
2.8 (72) |
2.8 (71) |
38.8 (984) |
Average snowfall inches (cm) | 23 (58) |
18 (45) |
14 (36) |
1.2 (3) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.9 (2.4) |
5.5 (14) |
21 (53) |
83.6 (211.4) |
Average precipitation days (≥ 0.2 mm) | 12.6 | 11.4 | 11.8 | 12.2 | 12.9 | 12.9 | 11.1 | 11.1 | 10.0 | 10.7 | 10.3 | 12.1 | 139.1 |
Average snowy days (≥ 0.2 cm) | 10.7 | 9.4 | 5.8 | 1.3 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.4 | 2.7 | 8.3 | 38.6 |
Average relative humidity (%) | 70.1 | 67.5 | 63.3 | 60.4 | 64.6 | 70.5 | 71.1 | 73.8 | 75.2 | 71.6 | 71.8 | 72.5 | 69.4 |
Average dew point °F (°C) | 7.2 (−13.8) |
8.2 (−13.2) |
19.0 (−7.2) |
31.3 (−0.4) |
45.3 (7.4) |
55.9 (13.3) |
60.4 (15.8) |
59.9 (15.5) |
53.4 (11.9) |
39.6 (4.2) |
26.8 (−2.9) |
13.3 (−10.4) |
35.0 (1.7) |
Mean monthly sunshine hours | 130.3 | 143.7 | 185.7 | 210.5 | 246.9 | 269.7 | 285.7 | 257.2 | 200.2 | 173.3 | 104.3 | 95.9 | 2,303.4 |
Percent possible sunshine | 44 | 48 | 50 | 53 | 55 | 60 | 62 | 60 | 54 | 50 | 35 | 33 | 52 |
Source: NOAA (relative humidity and dew point 1964–1990, sun 1961–1990) [10] [11] [12] |
Pittsburgh | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Pittsburgh ( Pittsburgh International Airport), 1991–2020 normals, [e] extremes 1874–present [f] | |||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 66 (19) |
70 (21) |
79 (26) |
88 (31) |
95 (35) |
99 (37) |
102 (39) |
102 (39) |
102 (39) |
90 (32) |
77 (25) |
64 (18) |
102 (39) |
Mean maximum °F (°C) | 52.5 (11.4) |
54.1 (12.3) |
68.2 (20.1) |
79.7 (26.5) |
86.7 (30.4) |
90.3 (32.4) |
91.2 (32.9) |
90.3 (32.4) |
88.2 (31.2) |
78.1 (25.6) |
65.5 (18.6) |
53.6 (12.0) |
92.7 (33.7) |
Mean daily maximum °F (°C) | 27.3 (−2.6) |
30.6 (−0.8) |
43.7 (6.5) |
60.6 (15.9) |
72.0 (22.2) |
79.3 (26.3) |
82.9 (28.3) |
81.7 (27.6) |
75.0 (23.9) |
61.3 (16.3) |
45.5 (7.5) |
31.6 (−0.2) |
57.6 (14.2) |
Daily mean °F (°C) | 19.8 (−6.8) |
22.5 (−5.3) |
34.3 (1.3) |
49.6 (9.8) |
61.2 (16.2) |
69.4 (20.8) |
73.2 (22.9) |
71.8 (22.1) |
64.9 (18.3) |
51.6 (10.9) |
37.2 (2.9) |
24.6 (−4.1) |
48.3 (9.1) |
Mean daily minimum °F (°C) | 12.4 (−10.9) |
14.2 (−9.9) |
25.0 (−3.9) |
38.8 (3.8) |
50.5 (10.3) |
59.4 (15.2) |
63.3 (17.4) |
62.1 (16.7) |
54.9 (12.7) |
41.9 (5.5) |
28.9 (−1.7) |
17.8 (−7.9) |
39.1 (3.9) |
Mean minimum °F (°C) | −8.0 (−22.2) |
−4.0 (−20.0) |
6.3 (−14.3) |
23.5 (−4.7) |
35.6 (2.0) |
45.1 (7.3) |
52.5 (11.4) |
51.1 (10.6) |
41.2 (5.1) |
27.7 (−2.4) |
13.8 (−10.1) |
0.7 (−17.4) |
−10.5 (−23.6) |
Record low °F (°C) | −31 (−35) |
−29 (−34) |
−11 (−24) |
9 (−13) |
27 (−3) |
34 (1) |
43 (6) |
39 (4) |
30 (−1) |
14 (−10) |
−6 (−21) |
−20 (−29) |
−31 (−35) |
Average precipitation inches (mm) | 3.0 (75) |
2.6 (67) |
3.1 (80) |
3.3 (84) |
3.8 (97) |
4.1 (105) |
4.3 (108) |
3.5 (89) |
3.3 (84) |
2.8 (72) |
2.9 (73) |
2.8 (72) |
39.5 (1,006) |
Average snowfall inches (cm) | 31.6 (80.3) |
22.3 (56.7) |
10.7 (27.3) |
1.8 (4.6) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.7 (1.8) |
6.9 (17.6) |
22.9 (58.2) |
96.9 (246.5) |
Average precipitation days (≥ 0.1 mm) | 16.8 | 13.9 | 14.0 | 13.9 | 13.5 | 12.4 | 11.2 | 10.5 | 9.8 | 11.1 | 12.0 | 14.6 | 153.7 |
Average snowy days (≥ 0.1 cm) | 14.2 | 10.3 | 6.9 | 1.6 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.5 | 4.3 | 10.0 | 47.8 |
Average relative humidity (%) | 69.9 | 67.3 | 64.1 | 59.8 | 63.4 | 66.2 | 68.8 | 71.2 | 72.0 | 68.3 | 70.2 | 71.9 | 67.8 |
Average dew point °F (°C) | 8.2 (−13.2) |
9.9 (−12.3) |
21.4 (−5.9) |
32.7 (0.4) |
45.9 (7.7) |
55.2 (12.9) |
60.1 (15.6) |
59.5 (15.3) |
53.4 (11.9) |
39.0 (3.9) |
27.0 (−2.8) |
14.2 (−9.9) |
35.5 (2.0) |
Mean monthly sunshine hours | 93.9 | 108.5 | 155.4 | 182.8 | 217.4 | 242.2 | 254.9 | 228.4 | 196.7 | 167.3 | 99.4 | 74.4 | 2,021.3 |
Percent possible sunshine | 31 | 36 | 42 | 46 | 49 | 54 | 56 | 54 | 53 | 48 | 33 | 26 | 45 |
Average ultraviolet index | 2 | 2 | 2 | 4 | 6 | 6 | 6 | 5 | 4 | 3 | 2 | 1 | 4 |
Source 1: NOAA (relative humidity, dew point and sun 1961–1990) [14] [15] [16] [17] | |||||||||||||
Source 2: Weather Atlas (UV) [18] |
Philadelphia | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Record high °F (°C) | 64 (18) |
70 (21) |
82 (28) |
93 (34) |
97 (36) |
102 (39) |
104 (40) |
106 (41) |
102 (39) |
95 (35) |
79 (26) |
64 (18) |
106 (41) |
Mean maximum °F (°C) | 54.3 (12.4) |
54.5 (12.5) |
68.4 (20.2) |
82.6 (28.1) |
90.1 (32.3) |
94.8 (34.9) |
97.2 (36.2) |
94.8 (34.9) |
90.7 (32.6) |
80.8 (27.1) |
66.9 (19.4) |
55.2 (12.9) |
98.1 (36.7) |
Mean daily maximum °F (°C) | 32.4 (0.2) |
35.2 (1.8) |
47.5 (8.6) |
63.0 (17.2) |
74.5 (23.6) |
83.1 (28.4) |
87.8 (31.0) |
85.8 (29.9) |
79.0 (26.1) |
65.5 (18.6) |
50.5 (10.3) |
37.0 (2.8) |
61.8 (16.5) |
Daily mean °F (°C) | 24.6 (−4.1) |
27.0 (−2.8) |
38.1 (3.4) |
52.7 (11.5) |
64.2 (17.9) |
73.6 (23.1) |
78.6 (25.9) |
76.8 (24.9) |
70.0 (21.1) |
56.5 (13.6) |
42.1 (5.6) |
29.7 (−1.3) |
52.8 (11.6) |
Mean daily minimum °F (°C) | 17.1 (−8.3) |
18.5 (−7.5) |
28.9 (−1.7) |
42.4 (5.8) |
54.1 (12.3) |
63.9 (17.7) |
69.6 (20.9) |
67.8 (19.9) |
61.0 (16.1) |
47.5 (8.6) |
33.4 (0.8) |
22.3 (−5.4) |
43.9 (6.6) |
Mean minimum °F (°C) | 1.8 (−16.8) |
4.6 (−15.2) |
15.4 (−9.2) |
31.3 (−0.4) |
43.2 (6.2) |
53.2 (11.8) |
62.2 (16.8) |
60.3 (15.7) |
49.5 (9.7) |
35.2 (1.8) |
21.0 (−6.1) |
10.0 (−12.2) |
−0.4 (−18.0) |
Record low °F (°C) | −17 (−27) |
−20 (−29) |
0 (−18) |
12 (−11) |
28 (−2) |
45 (7) |
52 (11) |
45 (7) |
36 (2) |
23 (−5) |
3 (−16) |
−15 (−26) |
−20 (−29) |
Average precipitation inches (mm) | 3.1 (80) |
2.8 (70) |
4.0 (101) |
3.5 (88) |
3.3 (85) |
4.1 (103) |
4.4 (111) |
4.3 (109) |
4.4 (112) |
3.5 (88) |
2.9 (74) |
4.0 (101) |
44.1 (1,120) |
Average snowfall inches (cm) | 26.8 (68.0) |
22.2 (56.3) |
9.1 (23.1) |
0.5 (1.2) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
1.5 (3.8) |
27.1 (68.9) |
87.2 (221.3) |
Average precipitation days (≥ 0.2 mm) | 11.0 | 9.7 | 10.9 | 10.9 | 11.0 | 10.3 | 10.1 | 8.9 | 9.3 | 9.1 | 8.6 | 11.0 | 120.8 |
Average snowy days (≥ 0.2 cm) | 7.6 | 6.5 | 3.1 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.3 | 6.0 | 24.7 |
Average relative humidity (%) | 66.2 | 63.6 | 61.7 | 60.4 | 65.4 | 67.8 | 69.6 | 70.4 | 71.6 | 70.8 | 68.4 | 67.7 | 67.0 |
Average dew point °F (°C) | 10.8 (−11.8) |
12.0 (−11.1) |
23.2 (−4.9) |
35.2 (1.8) |
49.5 (9.7) |
59.2 (15.1) |
64.6 (18.1) |
63.7 (17.6) |
57.2 (14.0) |
43.9 (6.6) |
30.2 (−1.0) |
16.5 (−8.6) |
38.8 (3.8) |
Mean monthly sunshine hours | 155.7 | 154.7 | 202.8 | 217.0 | 245.1 | 271.2 | 275.6 | 260.1 | 219.3 | 204.5 | 154.7 | 137.7 | 2,498.4 |
Percent possible sunshine | 52 | 52 | 55 | 55 | 55 | 61 | 61 | 61 | 59 | 59 | 52 | 47 | 56 |
Average ultraviolet index | 2 | 3 | 4 | 6 | 8 | 9 | 9 | 8 | 6 | 4 | 2 | 2 | 5 |
Source 1: NOAA (relative humidity, dew point and sun 1961–1990) [23] [24] [21] | |||||||||||||
Source 2: Weather Atlas (UV index) [25] |
Washington, D.C. | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate chart ( explanation) | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Record high °F (°C) | 70 (21) |
75 (24) |
88 (31) |
93 (34) |
99 (37) |
104 (40) |
106 (41) |
106 (41) |
104 (40) |
97 (36) |
81 (27) |
70 (21) |
106 (41) |
Mean maximum °F (°C) | 57.6 (14.2) |
59.2 (15.1) |
72.0 (22.2) |
84.6 (29.2) |
91.0 (32.8) |
95.7 (35.4) |
98.1 (36.7) |
96.4 (35.8) |
91.9 (33.3) |
82.8 (28.2) |
69.4 (20.8) |
58.1 (14.5) |
99.1 (37.3) |
Mean daily maximum °F (°C) | 35.8 (2.1) |
39.4 (4.1) |
51.1 (10.6) |
66.2 (19.0) |
76.5 (24.7) |
85.1 (29.5) |
89.6 (32.0) |
87.8 (31.0) |
80.8 (27.1) |
67.6 (19.8) |
52.9 (11.6) |
39.7 (4.3) |
64.4 (18.0) |
Daily mean °F (°C) | 28.6 (−1.9) |
30.9 (−0.6) |
42.3 (5.7) |
56.5 (13.6) |
67.3 (19.6) |
76.3 (24.6) |
81.0 (27.2) |
79.3 (26.3) |
72.3 (22.4) |
59.0 (15.0) |
44.4 (6.9) |
32.7 (0.4) |
55.9 (13.3) |
Mean daily minimum °F (°C) | 21.0 (−6.1) |
22.8 (−5.1) |
33.3 (0.7) |
46.6 (8.1) |
57.9 (14.4) |
67.5 (19.7) |
72.3 (22.4) |
71.1 (21.7) |
64.0 (17.8) |
50.4 (10.2) |
36.3 (2.4) |
25.5 (−3.6) |
47.4 (8.6) |
Mean minimum °F (°C) | 5.4 (−14.8) |
7.9 (−13.4) |
18.0 (−7.8) |
33.1 (0.6) |
45.5 (7.5) |
55.8 (13.2) |
63.9 (17.7) |
62.1 (16.7) |
51.3 (10.7) |
36.9 (2.7) |
23.4 (−4.8) |
12.4 (−10.9) |
3.4 (−15.9) |
Record low °F (°C) | −24 (−31) |
−24 (−31) |
−2 (−19) |
14 (−10) |
34 (1) |
43 (6) |
52 (11) |
48 (9) |
36 (2) |
25 (−4) |
5 (−15) |
−22 (−30) |
−24 (−31) |
Average precipitation inches (mm) | 2.9 (73) |
2.6 (67) |
3.5 (89) |
3.2 (82) |
3.9 (100) |
4.2 (107) |
4.3 (110) |
3.3 (83) |
3.9 (100) |
3.7 (93) |
2.9 (74) |
3.4 (87) |
41.8 (1,065) |
Average snowfall inches (cm) | 17 (42) |
13 (33) |
3.1 (8) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
1.6 (4) |
12 (30) |
46.7 (117) |
Average precipitation days (≥ 0.2 mm) | 9.7 | 9.3 | 11.0 | 10.8 | 11.6 | 10.6 | 10.5 | 8.7 | 8.7 | 8.3 | 8.4 | 10.1 | 117.7 |
Average snowy days (≥ 0.2 cm) | 6.8 | 5.7 | 2.1 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.1 | 4.0 | 19.7 |
Average relative humidity (%) | 62.1 | 60.5 | 58.6 | 58.0 | 64.5 | 65.8 | 66.9 | 69.3 | 69.7 | 67.4 | 64.7 | 64.1 | 64.3 |
Average dew point °F (°C) | 12.7 (−10.7) |
14.5 (−9.7) |
25.9 (−3.4) |
37.9 (3.3) |
52.3 (11.3) |
61.5 (16.4) |
66.0 (18.9) |
65.8 (18.8) |
59.5 (15.3) |
45.7 (7.6) |
31.6 (−0.2) |
18.1 (−7.7) |
41.0 (5.0) |
Mean monthly sunshine hours | 144.6 | 151.8 | 204.0 | 228.2 | 260.5 | 283.2 | 280.5 | 263.1 | 225.0 | 203.6 | 150.2 | 133.0 | 2,527.7 |
Mean daily daylight hours | 9.8 | 10.8 | 12.0 | 13.3 | 14.3 | 14.9 | 14.6 | 13.6 | 12.4 | 11.2 | 10.1 | 9.5 | 12.2 |
Percent possible sunshine | 48 | 50 | 55 | 57 | 59 | 64 | 62 | 62 | 60 | 59 | 50 | 45 | 57 |
Average ultraviolet index | 2 | 3 | 5 | 7 | 8 | 9 | 9 | 8 | 7 | 4 | 3 | 2 | 6 |
Source 1: NOAA (relative humidity, dew point and sun 1961−1990) [28] [26] [29] [30] | |||||||||||||
Source 2: Weather Atlas (UV and daylight hours) [31] |
Richmond | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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Climate data for Richmond International Airport, Virginia (1991–2020 normals, [k] extremes 1887–present [l]) | |||||||||||||
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Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
Record high °F (°C) | 72 (22) |
73 (23) |
88 (31) |
95 (35) |
100 (38) |
104 (40) |
106 (41) |
108 (42) |
102 (39) |
97 (36) |
81 (27) |
72 (22) |
108 (42) |
Mean maximum °F (°C) | 61.2 (16.2) |
63.7 (17.6) |
75.0 (23.9) |
85.8 (29.9) |
91.6 (33.1) |
96.6 (35.9) |
98.6 (37.0) |
96.6 (35.9) |
92.8 (33.8) |
84.6 (29.2) |
71.8 (22.1) |
62.8 (17.1) |
99.7 (37.6) |
Mean daily maximum °F (°C) | 38.8 (3.8) |
42.6 (5.9) |
54.1 (12.3) |
68.5 (20.3) |
77.7 (25.4) |
85.6 (29.8) |
89.4 (31.9) |
87.4 (30.8) |
81.1 (27.3) |
69.1 (20.6) |
55.0 (12.8) |
42.4 (5.8) |
66.0 (18.9) |
Daily mean °F (°C) | 29.3 (−1.5) |
32.0 (0.0) |
43.0 (6.1) |
56.7 (13.7) |
66.7 (19.3) |
75.0 (23.9) |
79.3 (26.3) |
77.5 (25.3) |
71.2 (21.8) |
58.3 (14.6) |
44.2 (6.8) |
32.7 (0.4) |
55.5 (13.1) |
Mean daily minimum °F (°C) | 19.8 (−6.8) |
21.4 (−5.9) |
31.8 (−0.1) |
44.6 (7.0) |
55.8 (13.2) |
64.6 (18.1) |
69.3 (20.7) |
67.6 (19.8) |
61.2 (16.2) |
47.1 (8.4) |
33.4 (0.8) |
23.2 (−4.9) |
45.0 (7.2) |
Mean minimum °F (°C) | 2.1 (−16.6) |
7.0 (−13.9) |
16.2 (−8.8) |
30.0 (−1.1) |
42.1 (5.6) |
53.4 (11.9) |
61.0 (16.1) |
59.4 (15.2) |
48.7 (9.3) |
32.5 (0.3) |
18.9 (−7.3) |
9.1 (−12.7) |
0.1 (−17.7) |
Record low °F (°C) | −20 (−29) |
−18 (−28) |
5 (−15) |
18 (−8) |
30 (−1) |
39 (4) |
52 (11) |
46 (8) |
36 (2) |
19 (−7) |
5 (−15) |
−11 (−24) |
−20 (−29) |
Average precipitation inches (mm) | 3.2 (82) |
2.6 (66) |
4.0 (102) |
3.2 (81) |
4.0 (102) |
4.6 (118) |
4.4 (111) |
4.9 (124) |
4.6 (117) |
3.4 (86) |
3.1 (78) |
3.5 (89) |
45.5 (1,156) |
Average snowfall inches (cm) | 14 (36) |
9.1 (23) |
3.5 (9) |
0.4 (1) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
0.0 (0.0) |
1.2 (3) |
9.8 (25) |
38 (97) |
Average precipitation days (≥ 0.1 mm) | 10.0 | 9.0 | 10.8 | 10.5 | 11.1 | 10.6 | 11.4 | 9.4 | 9.3 | 8.1 | 8.4 | 10.0 | 118.6 |
Average snowy days (≥ 0.1 cm) | 4.9 | 3.7 | 2.0 | 0.9 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 1.6 | 3.9 | 17 |
Average relative humidity (%) | 67.9 | 65.6 | 63.0 | 60.8 | 69.5 | 72.2 | 74.8 | 77.2 | 77.0 | 73.8 | 69.1 | 68.9 | 70.0 |
Average dew point °F (°C) | 15.8 (−9.0) |
17.4 (−8.1) |
28.2 (−2.1) |
39.7 (4.3) |
54.1 (12.3) |
63.0 (17.2) |
67.6 (19.8) |
67.3 (19.6) |
60.6 (15.9) |
46.6 (8.1) |
32.7 (0.4) |
20.5 (−6.4) |
42.8 (6.0) |
Mean monthly sunshine hours | 172.5 | 179.7 | 233.3 | 261.6 | 288.0 | 306.4 | 301.4 | 278.9 | 237.9 | 222.8 | 183.5 | 163.0 | 2,829 |
Percent possible sunshine | 56 | 59 | 63 | 66 | 65 | 69 | 67 | 66 | 64 | 64 | 60 | 55 | 64 |
Average ultraviolet index | 2 | 3 | 5 | 7 | 8 | 9 | 9 | 9 | 7 | 5 | 3 | 2 | 6 |
Source 1: NOAA (relative humidity and sunshine hours 1961–1990) [33] [34] [35] | |||||||||||||
Source 2: Weather Atlas [36] |
New York Weatherbox NOAA txt
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