March 21: The area between Windsor and
Cobalt in Ontario was affected by winds gusting up to 150 km/h. 7 people were killed during the storm which also damaged buildings and uprooted trees.
1922
March 30: 30–40 mm freezing rain affected south Ontario from the Windsor area to an area just north of
Toronto.
1943
March 8: Temperatures in Windsor, ON drop to −19.4 °C (−3 °F), the coldest March night on record here.
1946
June 17:
An F4 tornado tracking from near Detroit, Michigan (
River Rouge, Michigan), via Windsor to
Tecumseh, Ontario kills 17 and injures hundreds more. 400 homes in Windsor were damaged or destroyed. This is Canada's third worst killer tornado.
1953
June 20: The highest
humidex reading ever recorded in Windsor (and in Canada until it was surpassed by
Carman, Manitoba in 2007) occurred, hitting 52.1. The temperature was 37 °C (99 °F).
1966
May 10: Lows drop to −2.8 °C (27 °F) in Windsor, ON, the coldest May night on record here.
1967
October 4: Temperatures reach 28.9 °C (84 °F) in Windsor, Ontario, the highest temperature recorded across Canada in October 1967.
1973
January 29: Windsor Coldest temperature recorded on record (−32.8 °C or −27 °F)
1974
April 3: Windsor's costliest disaster, an F3 tornado, hits, as a part of the
1974 Super Outbreak.
1984
September 2: 8 tornadoes touch down between Windsor and London, Ontario.
1985
April 7:
Southern Ontario was affected by winds gusting up to 110 km/h. Among the consequences were
Power failures from Windsor to
Belleville, 7 people being stranded in a lift at the
Skylon Tower at the
Niagara Falls when the lift cables were twisted in the wind and the wind combined with pack ice on the
Welland Canal to block the canal stopping shipping traffic.
May 30: Golf ball size hail in the Windsor and
Leamington areas of Ontario causing $30–40 million damage.
1988
June 25: The temperature hit 40.2 °C. At 38.2 °C it was also the hottest day on record in
London, Ontario, as well.
1990
November 1: Record breaking temperatures spreads much into Southern Ontario bringing the temperature up to 21 °C.[1]
July 14: Extreme hot temperatures shattered into much of Southern Ontario and the Great Lakes which saw the mercury in Windsor rise to 38 °C. This was all part of the
1995 Chicago heat wave which saw temperature in Chicago rise to 41 °C.[2][3]
1997
February 27: 110 km/h winds affected the Windsor, ON area damaging buildings, smashing windows and uprooting trees.
March 22: A spell of snow over
Southern Ontario from Windsor to the
Ottawa Valley that began on the evening of the 20th came to an end. Generally 15–25 cm snow fell and in the
Niagara Peninsula more than 35 cm snow fell. 19
March 30: Very unusually warm weather spreads into southern Ontario bringing the temperature in Windsor up to 25 °C.[4]
December 6: Temperature soars up to 19 °C making it one of the warmest Decembers in Southern Ontario on record.[5]
1999
September 3: One of Canada's worst road disasters occurred in dense early morning fog which suddenly sprung up near Windsor, Ontario on
Highway 401 just east of Exit 21, reducing visibility to less than 1 metre. Out of 87 automobiles and trucks involved, 82 vehicles were destroyed, 8 people were killed and 33 others were injured.
November 9: Very unusually warm late summer, mid-September like mild temperatures broke records across most of Ontario. Temperatures that day in Windsor soars up to 23 °C.[6]
2000
February 26: saw temperatures in London, ON reach 17.8 °C whilst in Windsor temperatures topped 20 °C for the first time on record in February.
March 7: Temperatures exceeded 25 °C in Windsor,
Sarnia,
Petrolia and
Strathroy (all in
Ontario). Records show that this is the earliest temperatures over 25 °C have been reached here, beating the old record by more than 3 weeks.
April 20: 94.6 mm rain fell in Windsor, Ontario, well above the total average precipitation for the whole month of April (74.9 mm). London and Sarnia were also really wet, recording 66.4 mm and 51.2 mm rain respectively.
2001
August 8: A
heat wave invades much of Southern Ontario and northeastern US. Temperature in Windsor rose up to 37 °C.[7]
December 5: Windsor and much of Southern Ontario saw an unusually mild late September temperatures with the mercury soaring up to 18 °C. This was very well known to be one of the warmest Decembers ever recorded in Southern Ontario.[8]
2002
February 25: The temperature peaked at 15.1 °C in Windsor, Ontario, the highest temperature recorded in the whole of Canada in the whole of February 2002.
March 26: An early Spring storm brought snow to much of southern Ontario, and some freezing rain to the
St. Catharines/
Hamilton area. Among the storm snowfall totals was 24.5 cm in Cornwall, 15 cm in
Kitchener, 13 cm in
Peterborough, 12 cm in
Barrie, 11 cm in Windsor, between 7 and 12 cm snow fell in Toronto and 8 cm in Hamilton.
April 8 – April 9: Heavy rain on the 8th and 9th (mainly on the 8th) over parts of Ontario knocks out power to 4,000 customers in
Muskoka. Among the wettest places were Windsor with 31 mm and Hamilton with 22 mm rain; here it was the wettest weather since January 31. Meanwhile, in
Wiarton, conditions were much wetter and 41 mm rain fell.
April 11: Temperatures peak at 20.5C in London and 20.7C in Windsor, the warmest weather here since October 25, 2001 when temperatures topped 20 °C for the last time. Meanwhile, Medicine Hat reached 17.5 °C, the warmest weather here since the first half of November 2001 whilst 17.9 °C in Saskatoon was their warmest weather since early October 2001.
April 16: Temperatures in an area extending from Windsor and London northeastwards across the
Barrie,
Hamilton and
Greater Toronto Area areas to
Ottawa reached 28–30 °C, the hottest weather in this area since September 9, 2001.
2003
February 23: A major winter storm affected southern and eastern Ontario on the February 22 and 23. 15 to 30 cm snow fell across many parts of regions extending from Windsor across Barrie-
Huronia and
Ski country into the
National Capital Region/
Ottawa area. Locally as much as 30 to 40 cm snow fell and drifts up to 60 cm deep were reported. On the morning of the 23rd snow depths included 20 cm in Windsor, 17 cm in Hamilton, 10–15 cm in Kitchener, 26 cm in Grand Valley, 28 cm in Vaughan, 20–30 cm in
Maple, Northern Toronto, 20 to 25 cm in Barrie, 34 cm in Orillia, 25 cm in Brampton, 27 cm in Minden and 20–37 cm in the Ottawa area. The greatest snow depth was 37 cm recorded in Franktown, southwest Ottawa. Freezing rain and ice pellets also affected the Niagara region and the north shore of Lake Ontario. Ice accretions as high as 2–4 cm were reported in Prince Edward County
March 3: A cold start across Ontario. Overnight lows fell to −24.7C at Pearson Airport, Toronto, −30.5 in Wiarton, −29.4C in Kitchener, −24.6 °C in Hamilton, −34.7 °C in Sudbury, −32.3 °C in Gore Bay, −31.0 °C in Petawawa, −19.7 °C in Windsor, −29.2 °C in Peterborough and −22.3 °C in Sarnia.
April 28: Summery over southern Ontario and Quebec with temperatures up to 26.4 °C in Toronto, 26.1 °C in Windsor, 25.1 °C in Ottawa, 25.5 °C in Sarnia and 24.3C in
London.
Montreal reached 23.7 °C,
Sherbrooke reached 24.3 °C and
Maniwaki reached 25.1 °C.
2006
October 12: Somewhat unusually cool air allows 0.51 cm of snow to fall, just enough to break the old record of the earliest snowfall of the season. The previous record was October 13. The requirements for measurement is 0.25 cm or higher. Below that, it would have been measured as a "trace" amount of snow, and would not have been a record.
January 7: Unusually warm winter weather peaks at 13 °C, breaking the previous local record of 12.8 °C set in 1989.
2009
April 24: Windsor and Southern Ontario experience a small heat wave, with temperatures in Windsor reaching 30.7 °C.
2011
April 11: Summer-like conditions in Windsor brought temperatures up to 26 °C with a humidex of 32 °C while temperatures in the rest of Southern Ontario (excluding Southwestern Ontario) only remained in the single digits. Nearby Detroit, Michigan reached 27 °C with a humidex of 33 °C at one point during the day.
July 21: One of the worst
heat waves recorded in North America's history was reported in much of the Midwest and Eastern US and much of Southern Ontario with temperatures in Windsor rising up to 37 °C.[9]
2012
July 4 and 17:
Very hot temperatures shattered into much of Southern Ontario and eastern US with Windsor temperatures on both of these days climbs up to 38 °C.[10]
2014
January 7:
Extreme cold temperatures invades much of Southern Canada and Midwest and Northeastern US with windchill temperatures in Windsor plunging down to −39 C, close to all-time low of −42 C.
2015
November 4: Windsor saw a daily record 23.9 °C (75.0 °F).[11][12] An unseasonably late summer, mid-September like mild temperatures broke records across most of Ontario between November 3 and 5, 2015. More mild record breaking temperatures were reported a month later around
Christmas Day, which most of Ontario saw a "Green Christmas".[13][14][15]
2016
May 15: A rare mid-May snow fell in Windsor along with the rest of Southern Ontario and the Great Lakes region. In that overnight, temperature plunges down to the record low of 0 °C (32 °F).[16]
March 21: The area between Windsor and
Cobalt in Ontario was affected by winds gusting up to 150 km/h. 7 people were killed during the storm which also damaged buildings and uprooted trees.
1922
March 30: 30–40 mm freezing rain affected south Ontario from the Windsor area to an area just north of
Toronto.
1943
March 8: Temperatures in Windsor, ON drop to −19.4 °C (−3 °F), the coldest March night on record here.
1946
June 17:
An F4 tornado tracking from near Detroit, Michigan (
River Rouge, Michigan), via Windsor to
Tecumseh, Ontario kills 17 and injures hundreds more. 400 homes in Windsor were damaged or destroyed. This is Canada's third worst killer tornado.
1953
June 20: The highest
humidex reading ever recorded in Windsor (and in Canada until it was surpassed by
Carman, Manitoba in 2007) occurred, hitting 52.1. The temperature was 37 °C (99 °F).
1966
May 10: Lows drop to −2.8 °C (27 °F) in Windsor, ON, the coldest May night on record here.
1967
October 4: Temperatures reach 28.9 °C (84 °F) in Windsor, Ontario, the highest temperature recorded across Canada in October 1967.
1973
January 29: Windsor Coldest temperature recorded on record (−32.8 °C or −27 °F)
1974
April 3: Windsor's costliest disaster, an F3 tornado, hits, as a part of the
1974 Super Outbreak.
1984
September 2: 8 tornadoes touch down between Windsor and London, Ontario.
1985
April 7:
Southern Ontario was affected by winds gusting up to 110 km/h. Among the consequences were
Power failures from Windsor to
Belleville, 7 people being stranded in a lift at the
Skylon Tower at the
Niagara Falls when the lift cables were twisted in the wind and the wind combined with pack ice on the
Welland Canal to block the canal stopping shipping traffic.
May 30: Golf ball size hail in the Windsor and
Leamington areas of Ontario causing $30–40 million damage.
1988
June 25: The temperature hit 40.2 °C. At 38.2 °C it was also the hottest day on record in
London, Ontario, as well.
1990
November 1: Record breaking temperatures spreads much into Southern Ontario bringing the temperature up to 21 °C.[1]
July 14: Extreme hot temperatures shattered into much of Southern Ontario and the Great Lakes which saw the mercury in Windsor rise to 38 °C. This was all part of the
1995 Chicago heat wave which saw temperature in Chicago rise to 41 °C.[2][3]
1997
February 27: 110 km/h winds affected the Windsor, ON area damaging buildings, smashing windows and uprooting trees.
March 22: A spell of snow over
Southern Ontario from Windsor to the
Ottawa Valley that began on the evening of the 20th came to an end. Generally 15–25 cm snow fell and in the
Niagara Peninsula more than 35 cm snow fell. 19
March 30: Very unusually warm weather spreads into southern Ontario bringing the temperature in Windsor up to 25 °C.[4]
December 6: Temperature soars up to 19 °C making it one of the warmest Decembers in Southern Ontario on record.[5]
1999
September 3: One of Canada's worst road disasters occurred in dense early morning fog which suddenly sprung up near Windsor, Ontario on
Highway 401 just east of Exit 21, reducing visibility to less than 1 metre. Out of 87 automobiles and trucks involved, 82 vehicles were destroyed, 8 people were killed and 33 others were injured.
November 9: Very unusually warm late summer, mid-September like mild temperatures broke records across most of Ontario. Temperatures that day in Windsor soars up to 23 °C.[6]
2000
February 26: saw temperatures in London, ON reach 17.8 °C whilst in Windsor temperatures topped 20 °C for the first time on record in February.
March 7: Temperatures exceeded 25 °C in Windsor,
Sarnia,
Petrolia and
Strathroy (all in
Ontario). Records show that this is the earliest temperatures over 25 °C have been reached here, beating the old record by more than 3 weeks.
April 20: 94.6 mm rain fell in Windsor, Ontario, well above the total average precipitation for the whole month of April (74.9 mm). London and Sarnia were also really wet, recording 66.4 mm and 51.2 mm rain respectively.
2001
August 8: A
heat wave invades much of Southern Ontario and northeastern US. Temperature in Windsor rose up to 37 °C.[7]
December 5: Windsor and much of Southern Ontario saw an unusually mild late September temperatures with the mercury soaring up to 18 °C. This was very well known to be one of the warmest Decembers ever recorded in Southern Ontario.[8]
2002
February 25: The temperature peaked at 15.1 °C in Windsor, Ontario, the highest temperature recorded in the whole of Canada in the whole of February 2002.
March 26: An early Spring storm brought snow to much of southern Ontario, and some freezing rain to the
St. Catharines/
Hamilton area. Among the storm snowfall totals was 24.5 cm in Cornwall, 15 cm in
Kitchener, 13 cm in
Peterborough, 12 cm in
Barrie, 11 cm in Windsor, between 7 and 12 cm snow fell in Toronto and 8 cm in Hamilton.
April 8 – April 9: Heavy rain on the 8th and 9th (mainly on the 8th) over parts of Ontario knocks out power to 4,000 customers in
Muskoka. Among the wettest places were Windsor with 31 mm and Hamilton with 22 mm rain; here it was the wettest weather since January 31. Meanwhile, in
Wiarton, conditions were much wetter and 41 mm rain fell.
April 11: Temperatures peak at 20.5C in London and 20.7C in Windsor, the warmest weather here since October 25, 2001 when temperatures topped 20 °C for the last time. Meanwhile, Medicine Hat reached 17.5 °C, the warmest weather here since the first half of November 2001 whilst 17.9 °C in Saskatoon was their warmest weather since early October 2001.
April 16: Temperatures in an area extending from Windsor and London northeastwards across the
Barrie,
Hamilton and
Greater Toronto Area areas to
Ottawa reached 28–30 °C, the hottest weather in this area since September 9, 2001.
2003
February 23: A major winter storm affected southern and eastern Ontario on the February 22 and 23. 15 to 30 cm snow fell across many parts of regions extending from Windsor across Barrie-
Huronia and
Ski country into the
National Capital Region/
Ottawa area. Locally as much as 30 to 40 cm snow fell and drifts up to 60 cm deep were reported. On the morning of the 23rd snow depths included 20 cm in Windsor, 17 cm in Hamilton, 10–15 cm in Kitchener, 26 cm in Grand Valley, 28 cm in Vaughan, 20–30 cm in
Maple, Northern Toronto, 20 to 25 cm in Barrie, 34 cm in Orillia, 25 cm in Brampton, 27 cm in Minden and 20–37 cm in the Ottawa area. The greatest snow depth was 37 cm recorded in Franktown, southwest Ottawa. Freezing rain and ice pellets also affected the Niagara region and the north shore of Lake Ontario. Ice accretions as high as 2–4 cm were reported in Prince Edward County
March 3: A cold start across Ontario. Overnight lows fell to −24.7C at Pearson Airport, Toronto, −30.5 in Wiarton, −29.4C in Kitchener, −24.6 °C in Hamilton, −34.7 °C in Sudbury, −32.3 °C in Gore Bay, −31.0 °C in Petawawa, −19.7 °C in Windsor, −29.2 °C in Peterborough and −22.3 °C in Sarnia.
April 28: Summery over southern Ontario and Quebec with temperatures up to 26.4 °C in Toronto, 26.1 °C in Windsor, 25.1 °C in Ottawa, 25.5 °C in Sarnia and 24.3C in
London.
Montreal reached 23.7 °C,
Sherbrooke reached 24.3 °C and
Maniwaki reached 25.1 °C.
2006
October 12: Somewhat unusually cool air allows 0.51 cm of snow to fall, just enough to break the old record of the earliest snowfall of the season. The previous record was October 13. The requirements for measurement is 0.25 cm or higher. Below that, it would have been measured as a "trace" amount of snow, and would not have been a record.
January 7: Unusually warm winter weather peaks at 13 °C, breaking the previous local record of 12.8 °C set in 1989.
2009
April 24: Windsor and Southern Ontario experience a small heat wave, with temperatures in Windsor reaching 30.7 °C.
2011
April 11: Summer-like conditions in Windsor brought temperatures up to 26 °C with a humidex of 32 °C while temperatures in the rest of Southern Ontario (excluding Southwestern Ontario) only remained in the single digits. Nearby Detroit, Michigan reached 27 °C with a humidex of 33 °C at one point during the day.
July 21: One of the worst
heat waves recorded in North America's history was reported in much of the Midwest and Eastern US and much of Southern Ontario with temperatures in Windsor rising up to 37 °C.[9]
2012
July 4 and 17:
Very hot temperatures shattered into much of Southern Ontario and eastern US with Windsor temperatures on both of these days climbs up to 38 °C.[10]
2014
January 7:
Extreme cold temperatures invades much of Southern Canada and Midwest and Northeastern US with windchill temperatures in Windsor plunging down to −39 C, close to all-time low of −42 C.
2015
November 4: Windsor saw a daily record 23.9 °C (75.0 °F).[11][12] An unseasonably late summer, mid-September like mild temperatures broke records across most of Ontario between November 3 and 5, 2015. More mild record breaking temperatures were reported a month later around
Christmas Day, which most of Ontario saw a "Green Christmas".[13][14][15]
2016
May 15: A rare mid-May snow fell in Windsor along with the rest of Southern Ontario and the Great Lakes region. In that overnight, temperature plunges down to the record low of 0 °C (32 °F).[16]