u/yow-weather-records

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Over the past 150 years, Montreal's annual snow has decreased by about 128.19cm ± 33.74cm (95% CI).

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Toronto-Pearson white Christmases over the past 50 years (2022 edition)

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🥇With a ~2pm high of 20.6°C, today is Toronto's warmest Nov 5th since records began in 1840.

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Ottawa white Christmases over the past 50 years

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Vancouver just had its warmest month since July 1958. Mean temperature was 19.9°C.

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Today's ~1pm low of 3.1°C is the lowest temperature Toronto-City has recorded on May 28th in more than 100 years, since 1907.

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Calgary white Christmases over the past 50 years

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🥈With a ~3pm high of 32.2°C, today is Toronto's hottest May 31st in more than 100 years, since 1895.

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🥇With a ~1pm high of 18.5°C, today is Montreal's warmest Nov 4th since records began in 1871.

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🥇For the 1st time in recorded history, Montreal stayed above -11°C during an entire December (December 2022).

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Calgary just had its warmest summer since records began. Mean temperature was 17.94°C.

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Over the past 149 years, Ottawa's annual mean temperature has increased by 2.1 ± 0.5°C (95% CI).

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🥇With a ~2pm high of 20.2°C, today is Vancouver's warmest Oct 16th since records began in 1937.

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🥇With a ~noon high of 14.6°C, today is Toronto's warmest Dec 11th since records began in 1840.

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🥇With a ~noon high of 21.3°C, today is Montreal's warmest Nov 5th since records began in 1871.

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🥇With a ~5am high of 11.1°C, today is tied for Toronto's warmest Dec 30th since records began in 1840.

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With a 7pm snow total of 33cm, today is Calgary's snowiest day in more than 40 years, since May 6th, 1981.

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With a 10am snow total of 24cm, today is Vancouver's snowiest day in almost 14 years, since Christmas Eve, 2008.

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With 26.3mm of rain, yesterday was Vancouver's wettest June day in almost 30 years, since Jun 29th, 1992.

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Calgary white Christmases over the past 50 years (2022 edition)

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🥇With a ~1pm high of 13.8°C, today is Vancouver's warmest Jan 14th since records began in 1937.

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Today was Montreal's 221st ≥10°C day this year which puts 2021 in 1st place for the most in any year since records began.

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🥇May 21 was Vancouver's first 17°C of the year, which is the latest on record. Typical first is April 19. Record earliest is Feb 27, 1986; latest May 21, 2022.

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🥇Yesterday was Vancouver's 42nd consecutive day with no precip which puts this run in 1st place for the longest run on record.

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🥇Today is Calgary's 152nd consecutive day with maximum temperature ≥12°C which puts this run in 1st place for the longest run on record.

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Edmonton just had its warmest summer since records began. Mean temperature was 18.65°C.

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Today's ~7am temperature (-32.5°C) was Ottawa's coldest temperature in more than 20 years, since Jan 31st, 1996.

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Calgary just had its warmest month since records began. Mean temperature was 19.9°C.

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With a mean wind of 28.3km/h, yesterday was Toronto-Pearson's windiest August day in more than 60 years, since Aug 13th, 1955.

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🥇Today is Edmonton's 183rd consecutive day with maximum temperature ≥8°C which puts this run in 1st place for the longest run on record.

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🥇With a ~2pm high of 23.9°C, today is Montreal's warmest Apr 9th since records began in 1872.

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🥈With a high of 19.4°C, yesterday was Montreal's coldest Jul 30th in almost 90 years, since 1932.

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Longest run in 100 years. After 117 consecutive days with maximum temperature ≥18°C in Toronto, the maximum temperature was only 17.3°C yesterday.

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🥇For the 1st time in recorded history, Vancouver had more than 200 hours of bright sunshine during an April (April 2021).

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Montreal just had its warmest year since records began. Mean temperature was 8.9°C.

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🥇With a high of 9.9°C, yesterday was Vancouver's coldest Oct 13th since records began in 1937.

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🥇With a ~4pm high of 18.9°C, today is Montreal's warmest Mar 23rd since records began in 1872.

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🥇With a ~1pm high of 19.4°C, today is Ottawa's warmest Nov 4th since records began in 1872.

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🥈With a ~2pm high of 8.7°C, today is Toronto's warmest Feb 16th in more than 100 years, since 1921.

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Today's ~5am temperature of -15.3°C was Vancouver's coldest temperature in more than 50 years, since Jan 29th, 1969.

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🥇Streak over. After 6 consecutive January days with minimum temperature >2°C in Toronto, the minimum temperature was 1.4°C so far today. We broke the all time record before the run ended.

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🥇Today is Montreal's 7th consecutive June day with maximum temperature ≥30°C which puts this run in 1st place for the longest run on record.

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With a 10am windchill of -42.8, today is Ottawa's windchilliest day in almost 7 years, since Feb 13th, 2016.

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With a ~8pm high of 12.8°C, yesterday was Montreal's coldest Sep 19th in more than 70 years, since 1945.

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🥇With a high of 9.3°C, yesterday was Vancouver's coldest Oct 12th since records began in 1937.

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🥇With a ~4am min of 0.8°C, today is Vancouver's coldest Oct 9th since records began in 1898.

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Today is Edmonton's first -21°C of the season, which was the latest on record. Typical first is December 6. Record earliest is Oct 19, 1930; latest Jan 24, 2021.

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With a ~3am high of 10.7°C, today is Halifax-Shearwater's warmest New Year's Day in 90 years, since 1933.

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🥇With 19cm of snow cover, today is Calgary's deepest Nov 8th since records began in 1955.

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With a 1pm precip total of 20.1mm, today is Toronto's wettest New Year's Eve in more than 90 years, since 1927.

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With a ~2pm high of 27.1°C, today is Ottawa's hottest May 11th in more than 100 years, since 1911.

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🥉With a ~4pm high of 31.0°C, today is Montreal's hottest Jun 6th in more than 90 years, since 1930.

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With a mean wind of 44.5km/h, yesterday was Calgary's windiest day in almost 11 years, since Apr 29th, 2010.

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🥇With a ~4pm high of 27.6°C, yesterday was Vancouver's hottest Sep 6th since records began in 1900.

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🥇With a ~4pm high of 11.7°C, today is Montreal's warmest Mar 11th since records began in 1872.

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🥈With a ~5pm high of 35.2°C, today is Toronto's hottest Jul 19th in more than 100 years, since 1854.

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🥇For the 1st time in recorded history, Calgary had more than 400 hours of bright sunshine during a fall (fall 2021).

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🥇Streak over. After 113 consecutive days with maximum temperature ≥19°C in Toronto, the maximum temperature was only 18.4°C yesterday. We broke the all time record before the run ended.

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🥇With 33.3mm of rain, yesterday was Calgary's wettest May 21st since records began in 1885.

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🥇For the 1st time in recorded history, Calgary had more than 2000 hours of bright sunshine during a year (2021).

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🥇Streak over. After 31 consecutive days with minimum temperature >10°C in Calgary, the minimum temperature was only 9.3°C today. We broke the all time record before the run ended.

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Today is Montreal's first measurable snow of the season, which is the 5th-latest on record. Typical first is November 9. Record earliest is Sep 25, 1939; latest Dec 3, 2006.

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Hamilton white Christmases over the past 50 years (2022 edition)

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Yesterday was Vancouver's first measurable snow of the season, which is the earliest since 1991-10-28. Typical first is December 13. Record earliest is Oct 28, 1991; latest never, 1957.

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🥇With a ~11am high of 17.0°C, today is Toronto-Pearson's warmest Dec 16th since records began in 1937.

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🥈Streak over. Longest run in over 120 years. After 14 consecutive days with maximum temperature ≥27°C in Calgary, the maximum temperature was only 26.2°C yesterday. We made it to 2nd place, only 3 days behind the record.

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With a ~7pm temp of 23.1°C, yesterday was Toronto's warmest November day in more than 60 years, since Nov 3rd, 1961.

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🥇Today is Edmonton's first frost of the season, which is the latest on record. Typical first is September 28. Record earliest is Jul 24, 1918; latest Oct 23, 2022.

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🥇Streak over. After 95 consecutive days with minimum temperature >6°C in Calgary, the minimum temperature was 5.5°C today. We broke the all time record before the run ended.

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With a wind gust of 94km/h, yesterday was Ottawa's windiest day in more than 3 years, since May 4th, 2018.

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🥈With a ~2pm high of 22.2°C, today is Ottawa's warmest Nov 5th in more than 80 years, since 1938.

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Yesterday was Edmonton's 39th consecutive day with maximum temperature < 0°C which makes this the longest run in almost 40 years, since Dec 30th, 1983.

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🥇With a ~1pm high of 19.1°C, today is Ottawa's warmest Mar 25th since records began in 1872.

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Today is Toronto-Pearson's first -10°C of the season, which was the lastest on record. Typical first is December 8. Record earliest is Nov 6, 1951; latest Jan 23, 2021.

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Montreal just had its muggiest August since records began. Mean daily maximum humidex was 33.6.

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Over the past 85 years, Vancouver's annual mean temperature has increased by 1.1 ± 0.4°C (95% CI).

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🥉With a high of 14.8°C, yesterday was Vancouver's coldest Canada Day in 60 years, since Dominion Day, 1960.

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Calgary just had its warmest October since 1944. Mean temperature was 8.77°C.

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With a high of just -23.0°C, yesterday was Calgary's coldest Christmas Day in more than 80 years, since 1937.

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🥇With a high of 18.1°C, yesterday was Ottawa's coldest Aug 1st since records began in 1872.

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Edmonton just had its driest March since March 1893. Total precipitation was just 2.2mm.

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Today is Winnipeg's first -28°C of the season, which was the latest since 1983-01-25. Typical first is December 16. Record earliest is Nov 15, 1932; latest Feb 5, 1944.

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With 42cm of snow-on-the-ground, today is Montreal's deepest day in almost 13 years, since Mar 9th, 2008.

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🥇With a ~3pm high of 24.4°C, today is Montreal's hottest Oct 26th since records began in 1871.

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Today's ~5am temperature of 2.8°C was Montreal's coldest June temperature in more than 30 years, since Jun 3rd, 1986.

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🥇Today is Winnipeg's 91st consecutive day with maximum temperature ≥19°C which puts this run in 1st place for the longest run on record.

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Calgary just had its warmest September since September 1938. Mean temperature was 15.2°C.

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🥇Today is Calgary's first -12°C of the season, which is tied for the latest on record. Typical first is November 5. Record earliest is Sep 24, 1926; latest Dec 5, 2016/2021.

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Today's ~8am low of -10.1°C is the lowest temperature Toronto has recorded on Mar 28th in almost 100 years, since 1923.

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With a ~3am high of 6.6°C, today is Montreal's warmest Dec 30th in more than 80 years, since 1936.

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With a ~4pm temp of 24.7°C, yesterday was Hamilton's hottest November day in more than 70 years, since Nov 1st, 1950.

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Over the past 136 years, Calgary's annual mean temperature has increased by 1.58°C ± 0.59°C (95% CI).

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🥉With a high of 1.5°C, yesterday was Montreal's coldest Nov 3rd in more than 100 years, since 1912.

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Edmonton just had its warmest October since records began. Mean temperature was 9.04°C.

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🥈With a ~3pm high of 22.3°C, today is Toronto's warmest Oct 23rd in more than 100 years, since Oct 23rd, 1901.

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Calgary just had its coldest February since records began (by avg. hourly temp).

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With a wind gust of 120km/h, Saturday was Ottawa's windiest day in almost 60 years, since Jul 9th, 1962.

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Calgary just had its warmest meteological summer since records began. Mean temperature was 18.3°C.

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