Calgary December 21 Weather Records

Daily averages and all-time records for weather in Calgary, Alberta for the date of December 21.
December 21 All-Time Records
1881–2024
Highest temperature 16.1 °C 1954
Lowest temperature -35.6 °C 1884
Lowest daily high -26.6 °C 2022
Highest daily low 4.5 °C 1985
Most precipitation 1.18 cm 2020
Most snow 12.0 cm 2020
December 21 Average Weather
1991–2020 1
Average high -0.7 °C
Average low -12.5 °C
Chance precipitation 25.9%
Chance snow 25.6%
Calgary December 21 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 8.3 -0.7 0.00 0.0
2022 -26.6 -31.5 0.02 0.2
2021 0.9 -17.9 0.00 0.0
2020 2.8 -3.3 1.18 12.0
2019 1.1 -3.3 0.00 0.0
2018 5.4 -3.0 0.00 0.0
2017 -3.9 -15.5 0.06 1.0
2016 5.0 -7.3 0.00 0.0
2015 -0.6 -12.9 0.00 0.0
2014 5.6 -4.7 0.00 0.0
2013 -11.1 -18.7 0.05 1.0
2012 -14.2 -18.5 0.00 0.0
2011 0.1 -8.7 0.12 2.0
2010 -1.0 -18.2 0.00 0.0
2009 -11.6 -13.0 0.08 2.0
2008 -18.8 -30.3 0.08 0.8
2007 -3.7 -17.6 0.00 0.0
2006 9.2 -4.3 0.00 0.0
2005 10.0 1.5 0.00 0.0
2004 -4.3 -12.2 0.06 1.0
2003 5.0 -6.4 0.00 0.0
2002 -5.8 -20.0 0.00 0.0
2001 -6.2 -16.4 0.00 0.0
2000 -8.5 -20.4 0.00 0.0
1999 4.8 -2.0 0.00 0.0
1998 -10.0 -29.6 0.00 0.0
1997 1.3 -14.4 0.00 0.0
1996 -21.9 -29.4 0.08 1.4
1995 -5.3 -15.3 0.00 0.0
1994 8.6 -7.4 0.00 0.0
1993 -2.2 -10.2 0.00 0.0
1992 n/a n/a n/a n/a
1991 7.5 -5.0 0.00 0.0
1990 -18.5 -30.6 0.00 0.0
1989 -23.3 -35.0 0.00 0.0
1988 -6.3 -15.6 0.03 0.3
1987 2.2 -3.1 0.00 0.0
1986 8.6 -4.0 0.00 0.0
1985 11.0 4.5 0.00 0.0
1984 -15.4 -22.6 0.00 0.0
1983 -19.0 -30.5 0.00 0.2
1982 -9.4 -12.5 0.19 2.6
1981 1.3 -9.1 0.00 0.0
1980 -18.9 -22.3 0.00 0.4
1979 7.5 -7.4 0.00 0.0
1978 1.2 -13.0 0.02 0.2
1977 4.6 -8.5 0.00 0.0
1976 3.9 -8.9 0.00 0.0
1975 3.9 -8.3 0.00 0.0
1974 0.0 -7.8 0.03 0.3
1973 5.6 -4.4 0.00 0.0
1972 7.2 -10.6 0.00 0.0
1971 -16.7 -22.2 0.13 1.5
1970 -12.8 -26.7 0.03 0.5
1969 -4.4 -10.6 0.25 3.3
1968 -10.6 -22.2 0.03 0.8
1967 -18.9 -31.7 0.00 0.0
1966 -0.6 -12.2 0.36 5.6
1965 -1.7 -11.1 0.00 0.0
1964 -22.8 -32.8 0.08 1.0
1963 -8.3 -20.6 0.03 0.3
1962 7.8 -10.6 0.13 1.8
1961 -14.4 -21.7 0.00 0.0
1960 1.7 -21.1 0.51 5.1
1959 -2.2 -13.3 0.00 0.0
1958 9.4 -0.6 0.00 0.0
1957 0.6 -6.1 0.00 0.0
1956 0.0 -9.4 0.13 1.3
1955 -4.4 -22.2 0.84 8.4
1954 16.1 3.3 0.00 0.0
1953 -2.8 -16.1 0.00 0.0
1952 1.7 -15.6 0.00 0.0
1951 -3.9 -12.8 0.05 0.5
1950 5.0 -5.6 0.00 0.0
1949 -5.6 -12.8 0.03 0.3
1948 -5.6 -13.3 0.00 0.0
1947 4.4 -10.0 0.00 0.0
1946 6.7 -6.1 0.25 2.5
1945 -21.7 -23.9 0.23 2.3
1944 -5.0 -15.6 0.00 0.0
1943 -8.9 -12.8 0.00 0.0
1942 3.3 -3.9 0.00 0.0
1941 1.1 -12.2 0.00 0.0
1940 6.7 -1.1 0.00 0.0
1939 1.1 -3.3 0.00 0.0
1938 -0.6 -6.1 0.00 0.0
1937 -1.1 -5.6 0.00 0.0
1936 11.1 -10.0 0.00 0.0
1935 8.9 -0.6 0.00 0.0
1934 4.4 -4.4 0.20 2.0
1933 -12.8 -18.9 0.20 2.0
1932 -1.1 -12.2 0.00 0.0
1931 0.6 -8.3 0.00 0.0
1930 5.0 -10.0 0.00 0.0
1929 2.8 -23.9 0.00 0.0
1928 10.0 -7.8 0.00 0.0
1927 -10.6 -20.0 0.00 0.0
1926 -2.8 -7.8 0.08 0.8
1925 -7.2 -8.9 0.08 0.8
1924 -20.6 -27.8 0.00 0.0
1923 5.0 -9.4 0.00 0.0
1922 10.6 -3.9 0.00 0.0
1921 -5.6 -26.7 0.00 0.0
1920 -20.6 -24.4 0.00 0.0
1919 12.8 1.7 0.00 0.0
1918 -4.4 -14.4 0.00 0.0
1917 -10.0 -13.9 0.00 0.0
1916 -17.8 -24.4 0.00 0.0
1915 5.6 -3.9 0.00 0.0
1914 -1.1 -13.3 0.00 0.0
1913 1.1 -11.1 0.00 0.0
1912 4.4 -10.6 0.00 0.0
1911 2.8 -13.3 0.00 0.0
1910 3.3 1.7 0.00 0.0
1909 -12.2 -21.7 0.00 0.0
1908 3.3 -8.9 0.00 0.0
1907 6.7 -7.2 0.00 0.0
1906 -3.9 -13.3 0.00 0.0
1905 0.0 -11.1 0.00 0.0
1904 -4.4 -8.9 0.15 1.5
1903 0.6 -9.4 0.00 0.0
1902 -6.7 -12.2 0.00 0.0
1901 4.4 -3.3 0.00 0.0
1900 4.4 -1.1 0.00 0.0
1899 9.4 2.2 0.00 0.0
1898 0.0 -11.1 0.00 0.0
1897 2.2 -12.2 0.00 0.0
1896 9.4 2.8 0.00 0.0
1895 -9.4 -22.2 0.00 0.0
1894 -7.2 -12.2 0.00 0.0
1893 6.1 -5.6 0.00 0.0
1892 -20.6 -31.7 0.00 0.0
1891 2.8 -11.7 0.00 0.0
1890 7.2 -6.7 0.00 0.0
1889 -1.1 -13.3 0.00 0.0
1888 6.1 -5.6 0.00 0.0
1887 6.7 -7.2 0.00 0.0
1886 -11.7 -18.3 0.00 0.0
1885 9.4 -6.1 0.00 0.0
1884 -20.0 -35.6 0.00 0.0
1883 n/a n/a n/a n/a
1882 n/a n/a n/a n/a
1881 0.0 -10.0 0.00 0.0
What's the all-time high for Calgary on 12/21?
For the date of Dec 21, the highest temperature ever reached in Calgary history is 16.1 °C which happened in 1954.
Highest Temperatures in Calgary on December 21
Rank Temperature Year
1 16.1 °C 1954
2 12.8 °C 1919
3 11.1 °C 1936
4 11.0 °C 1985
5 10.6 °C 1922
6 10.0 °C 2005
6 10.0 °C 1928
8 9.4 °C 1899
8 9.4 °C 1885
8 9.4 °C 1896
8 9.4 °C 1958
What's the all-time low for Calgary on 12/21?
For the date of Dec 21, the lowest temperature ever reached in Calgary history is -35.6 °C which happened in 1884.
Lowest Temperatures in Calgary on December 21
Rank Temperature Year
1 -35.6 °C 1884
2 -35.0 °C 1989
3 -32.8 °C 1964
4 -31.7 °C 1967
4 -31.7 °C 1892
6 -31.5 °C 2022
7 -30.6 °C 1990
8 -30.5 °C 1983
9 -30.3 °C 2008
10 -29.6 °C 1998
Lowest High Temperatures in Calgary on December 21
Rank Temperature Year
1 -26.6 °C 2022
2 -23.3 °C 1989
3 -22.8 °C 1964
4 -21.9 °C 1996
5 -21.7 °C 1945
6 -20.6 °C 1892
6 -20.6 °C 1920
6 -20.6 °C 1924
9 -20.0 °C 1884
10 -19.0 °C 1983
What's the most it has ever rained in Calgary on 12/21?
For the date of Dec 21, the most precipitation ever recorded in Calgary history is 1.18 cm which happened in 2020.
All-Time Most Precipitation in Calgary on December 21
Rank Precipitation Year
1 1.18 cm 2020
2 0.84 cm 1955
3 0.51 cm 1960
4 0.36 cm 1966
5 0.25 cm 1946
5 0.25 cm 1969
7 0.23 cm 1945
8 0.20 cm 1933
8 0.20 cm 1934
10 0.19 cm 1982
All-Time Most Snow in Calgary on December 21
Rank Precipitation Year
1 12.0 cm 2020
2 8.4 cm 1955
3 5.6 cm 1966
4 5.1 cm 1960
5 3.3 cm 1969
6 2.6 cm 1982
7 2.5 cm 1946
8 2.3 cm 1945
9 2.0 cm 2011
9 2.0 cm 2009
9 2.0 cm 1934
9 2.0 cm 1933
Weather Station Details
Years Station Coordinates
2012–2024 Calgary International Airport location
1881–2012 Calgary International Airport location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
© H Brothers Inc, 2021–2024
Contact us | Privacy policy