Calgary Weather Records

Calgary, Alberta weather averages and records from 1881–2022 based on data made available by the NOAA.
All-Time Recorded High
The highest temperature ever recorded in Calgary, Alberta was 36.5 °C which occurred on August 10, 2018.
Highest Temperatures: All-Time By Year
All-Time Recorded Low
The lowest temperature ever recorded in Calgary, Alberta was -45.0 °C which occurred on February 4, 1893.
Lowest Temperatures: All-Time By Year
Calgary Weather by Month
Averages based on the years 1991–2020
Month Average (°C) Record (°C) Average (cm)
High ☀️ Low 🌙 High ☀️ Low 🌙 Precipitation 💧 Snow ❄️
January -1.1 -12.9 17.6 -44.4 1.1 17.0
February -0.1 -11.9 22.6 -45.0 1.3 17.6
March 3.9 -7.9 25.4 -37.2 1.7 23.1
April 10.8 -2.0 29.4 -30.0 3.0 21.7
May 16.2 3.3 32.4 -16.7 5.8 9.7
June 19.7 7.7 36.3 -3.3 10.4 0.1
July 23.5 10.3 36.3 -0.6 6.6 0.0
August 23.1 9.2 36.5 -3.2 5.6 0.0
September 18.1 4.7 33.3 -13.3 3.8 2.9
October 11.2 -1.3 29.4 -25.7 1.8 12.1
November 3.8 -7.6 23.1 -35.0 1.7 19.5
December -0.4 -12.0 19.5 -42.8 1.4 18.2
Entire year 10.8 -1.6 36.5 -45.0 44.0 144.4
More Calgary Weather Records
1881–2022
Highest daily low 25.6 °C August 12, 1906
Lowest daily high -38.9 °C January 31, 1893
Greatest daily range
(Difference of high and low)
38.8 °C January 30, 1989
Difference in high temperature
over two conscutive days
38.4 °C Jan 30–31, 1989
Most daily precipitation 9.5 cm July 15, 1927
Most monthly precipitation 24.8 cm June 2005
Most yearly precipitation 87.8 cm 1902
Earliest freeze July 5 1884
Latest freeze June 20 1902
Earliest snow in season August 15 1946
Latest snow in season June 26 1951
Most daily snow 48.4 cm May 6, 1981
Most monthly snow 82.0 cm September 1925
Most yearly snow 270.3 cm 1951
Calgary Weather Streaks
Most consecutive days...
With precipitation 19 days Jun 19 – Jul 7, 1969
Without precipitation 71 days Aug 31 – Nov 9, 1885
With snow 12 days Mar 26 – Apr 6, 1926
Calgary Weather by Year
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Weather Station Details
Years Station Coordinates
2012–2022 Calgary International Airport location
1881–2012 Calgary International Airport location