Calgary April 21 Weather Records

Daily averages and all-time records for weather in Calgary, Alberta for the date of April 21.
April 21 All-Time Records
1881–2024
Highest temperature 26.1 °C 1906
Lowest temperature -16.1 °C 1967
Lowest daily high -6.8 °C 2008
Highest daily low 8.3 °C 1913
Most precipitation 4.57 cm 1932
Most snow 45.7 cm 1932
April 21 Average Weather
1991–2020 1
Average high 12.1 °C
Average low -1.0 °C
Chance precipitation 33.1%
Chance snow 19.4%
Calgary April 21 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 0.1 -3.8 0.14 1.4
2022 5.5 -4.8 0.00 0.0
2021 19.2 -1.2 0.00 0.0
2020 19.3 6.6 0.00 0.0
2019 16.5 -0.6 0.00 0.0
2018 14.7 1.8 0.00 0.0
2017 10.7 2.6 0.04 0.0
2016 23.6 2.3 0.00 0.0
2015 21.9 7.5 0.00 0.0
2014 17.4 0.2 0.00 0.0
2013 n/a n/a n/a n/a
2012 15.1 -3.3 0.00 0.0
2011 6.5 -4.1 0.00 0.0
2010 21.8 4.4 0.00 0.0
2009 21.4 3.3 0.00 0.0
2008 -6.8 -10.7 0.20 2.4
2007 7.6 -1.7 0.14 1.4
2006 23.6 4.6 0.00 0.0
2005 19.8 1.8 0.00 0.0
2004 12.9 -1.5 0.00 0.0
2003 21.0 0.8 0.00 0.0
2002 16.9 1.9 0.00 0.0
2001 8.3 -6.5 0.00 0.0
2000 20.7 -1.9 0.00 0.0
1999 5.2 0.4 1.46 0.8
1998 22.0 1.3 0.00 0.0
1997 12.1 0.9 0.16 0.4
1996 8.9 -2.6 0.00 0.0
1995 10.3 -1.3 0.00 0.0
1994 23.5 4.7 0.00 0.0
1993 17.0 -3.2 0.00 0.0
1992 13.8 1.4 0.02 0.0
1991 19.7 -1.4 0.00 0.0
1990 20.7 6.6 0.00 0.0
1989 20.6 5.8 0.00 0.0
1988 13.2 -5.6 0.00 0.0
1987 18.6 2.4 0.00 0.0
1986 19.9 4.8 0.00 0.0
1985 2.4 -4.5 0.00 0.0
1984 18.9 2.4 0.00 0.0
1983 21.8 -0.3 0.00 0.0
1982 22.4 0.1 0.00 0.0
1981 12.3 1.1 0.00 0.0
1980 8.5 3.1 0.00 0.0
1979 6.9 -2.4 0.00 0.0
1978 4.4 -0.1 0.68 1.5
1977 12.3 -8.5 0.00 0.0
1976 8.9 -0.6 0.05 0.5
1975 10.6 -2.8 0.00 0.0
1974 14.4 -2.2 0.00 0.0
1973 13.3 -3.9 0.00 0.0
1972 13.3 -0.6 0.00 0.3
1971 15.0 2.2 0.56 0.0
1970 4.4 -2.2 0.10 2.0
1969 20.6 -4.4 0.00 0.0
1968 7.8 -7.2 0.00 0.0
1967 -2.2 -16.1 0.00 0.0
1966 12.2 -4.4 0.05 2.0
1965 7.8 -5.6 0.03 0.0
1964 8.9 -7.8 0.00 0.0
1963 0.6 -7.8 0.03 0.8
1962 14.4 1.1 0.00 0.0
1961 8.9 -1.7 0.00 0.0
1960 8.9 1.1 0.61 6.1
1959 16.7 -1.1 0.00 0.0
1958 7.8 -3.3 0.00 0.0
1957 13.9 -2.2 0.00 0.0
1956 2.8 -1.1 0.05 0.5
1955 8.9 -6.1 0.00 0.0
1954 10.6 -5.0 0.00 0.0
1953 5.6 1.1 0.08 0.0
1952 17.8 -4.4 0.00 0.0
1951 2.2 -12.2 0.00 0.0
1950 10.0 -1.7 0.00 0.0
1949 13.3 1.1 0.00 0.0
1948 6.7 -1.1 0.03 0.0
1947 8.3 0.0 0.05 0.5
1946 12.8 1.1 0.00 0.0
1945 11.1 0.0 0.20 0.0
1944 13.3 -1.7 0.03 0.0
1943 12.2 2.8 0.00 0.0
1942 23.3 6.7 0.00 0.0
1941 13.3 3.9 0.00 0.0
1940 1.1 0.0 1.04 4.3
1939 17.2 3.3 0.00 0.0
1938 13.3 -2.8 0.00 0.0
1937 5.6 0.0 0.25 2.5
1936 14.4 -1.7 0.00 0.0
1935 8.9 1.7 0.00 0.0
1934 25.6 7.2 0.00 0.0
1933 10.0 -3.3 0.00 0.0
1932 1.1 -3.3 4.57 45.7
1931 3.3 -2.2 0.00 0.0
1930 11.7 -2.2 0.00 0.0
1929 12.2 -1.7 0.56 5.6
1928 13.3 -3.3 0.00 0.0
1927 11.7 -13.3 0.00 0.0
1926 17.2 0.0 0.00 0.0
1925 15.6 -3.9 0.00 0.0
1924 16.7 -2.2 0.00 0.0
1923 10.0 -1.7 0.00 0.0
1922 22.8 1.1 0.00 0.0
1921 15.6 -3.3 0.10 0.0
1920 4.4 -2.2 0.18 1.8
1919 13.3 -2.8 0.00 0.0
1918 11.7 -0.6 0.00 0.0
1917 14.4 1.1 0.00 0.0
1916 12.8 1.1 0.00 0.0
1915 6.7 0.0 0.53 0.0
1914 13.9 -5.6 0.00 0.0
1913 19.4 8.3 0.00 0.0
1912 14.4 0.0 0.00 0.0
1911 23.3 -1.1 0.00 0.0
1910 15.0 -3.9 0.00 0.0
1909 7.8 -3.3 0.00 0.0
1908 14.4 2.8 0.00 0.0
1907 16.7 0.6 0.00 0.0
1906 26.1 2.2 0.00 0.0
1905 13.3 -0.6 0.00 0.0
1904 13.9 1.1 0.00 0.0
1903 18.9 -1.1 0.00 0.0
1902 7.2 -4.4 0.00 0.0
1901 11.7 -1.1 0.00 0.0
1900 17.2 -3.9 0.00 0.0
1899 13.3 -3.3 0.00 0.0
1898 12.2 -2.8 0.00 0.0
1897 13.3 3.9 0.41 0.0
1896 18.9 0.6 0.00 0.0
1895 18.9 -1.1 0.00 0.0
1894 17.8 6.7 0.00 0.0
1893 11.1 -3.3 0.00 0.0
1892 20.6 -7.2 0.00 0.0
1891 18.3 3.3 0.00 0.0
1890 12.8 -6.7 0.00 0.0
1889 21.1 -0.6 0.00 0.0
1888 14.4 1.7 0.89 0.0
1887 6.1 -1.1 0.05 0.5
1886 7.8 1.7 0.00 0.0
1885 8.9 -3.9 0.00 0.0
1884 n/a n/a n/a n/a
1883 n/a n/a n/a n/a
1882 n/a n/a n/a n/a
What's the all-time high for Calgary on 4/21?
For the date of Apr 21, the highest temperature ever reached in Calgary history is 26.1 °C which happened in 1906.
Highest Temperatures in Calgary on April 21
Rank Temperature Year
1 26.1 °C 1906
2 25.6 °C 1934
3 23.6 °C 2006
3 23.6 °C 2016
5 23.5 °C 1994
6 23.3 °C 1942
6 23.3 °C 1911
8 22.8 °C 1922
9 22.4 °C 1982
10 22.0 °C 1998
What's the all-time low for Calgary on 4/21?
For the date of Apr 21, the lowest temperature ever reached in Calgary history is -16.1 °C which happened in 1967.
Lowest Temperatures in Calgary on April 21
Rank Temperature Year
1 -16.1 °C 1967
2 -13.3 °C 1927
3 -12.2 °C 1951
4 -10.7 °C 2008
5 -8.5 °C 1977
6 -7.8 °C 1964
6 -7.8 °C 1963
8 -7.2 °C 1968
8 -7.2 °C 1892
10 -6.7 °C 1890
Lowest High Temperatures in Calgary on April 21
Rank Temperature Year
1 -6.8 °C 2008
2 -2.2 °C 1967
3 0.1 °C 2023
4 0.6 °C 1963
5 1.1 °C 1932
5 1.1 °C 1940
7 2.2 °C 1951
8 2.4 °C 1985
9 2.8 °C 1956
10 3.3 °C 1931
What's the most it has ever rained in Calgary on 4/21?
For the date of Apr 21, the most precipitation ever recorded in Calgary history is 4.57 cm which happened in 1932.
All-Time Most Precipitation in Calgary on April 21
Rank Precipitation Year
1 4.57 cm 1932
2 1.46 cm 1999
3 1.04 cm 1940
4 0.89 cm 1888
5 0.68 cm 1978
6 0.61 cm 1960
7 0.56 cm 1971
7 0.56 cm 1929
9 0.53 cm 1915
10 0.41 cm 1897
All-Time Most Snow in Calgary on April 21
Rank Precipitation Year
1 45.7 cm 1932
2 6.1 cm 1960
3 5.6 cm 1929
4 4.3 cm 1940
5 2.5 cm 1937
6 2.4 cm 2008
7 2.0 cm 1970
7 2.0 cm 1966
9 1.8 cm 1920
10 1.5 cm 1978
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.
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