Calgary May 20 Weather Records

Daily averages and all-time records for weather in Calgary, Alberta for the date of May 20.
May 20 All-Time Records
1881–2024
Highest temperature 31.1 °C 1897
Lowest temperature -4.8 °C 1987
Lowest daily high 1.9 °C 1992
Highest daily low 11.4 °C 2023
Most precipitation 3.00 cm 1976
Most snow 27.8 cm 1997
May 20 Average Weather
1991–2020 1
Average high 17.0 °C
Average low 4.1 °C
Chance precipitation 39.4%
Chance snow 6.0%
Calgary May 20 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 27.4 11.4 0.00 0.0
2022 n/a n/a n/a 0.2
2021 2.8 -1.8 0.14 1.2
2020 11.7 7.8 0.32 0.0
2019 9.9 -1.7 0.00 0.0
2018 24.5 4.1 0.00 0.0
2017 20.2 5.1 0.00 0.0
2016 10.3 1.4 0.25 0.0
2015 19.3 3.1 n/a 0.0
2014 20.2 5.1 0.02 0.0
2013 20.1 3.3 0.00 0.0
2012 18.0 0.9 0.00 0.0
2011 17.5 7.6 0.00 0.0
2010 15.9 2.5 0.00 0.0
2009 7.5 0.9 0.02 0.0
2008 23.9 10.0 0.00 0.0
2007 13.1 4.2 1.10 0.0
2006 20.1 7.8 0.00 0.0
2005 17.4 2.4 0.00 0.0
2004 9.7 4.5 0.76 0.0
2003 15.1 0.6 0.00 0.0
2002 20.0 6.3 0.00 0.0
2001 14.5 1.7 0.00 0.0
2000 19.4 8.3 0.00 0.0
1999 13.8 -0.2 0.78 0.0
1998 21.9 3.8 0.00 0.0
1997 2.2 -0.5 2.46 27.8
1996 n/a n/a n/a n/a
1995 16.7 0.3 0.26 2.4
1994 6.2 1.9 1.36 0.0
1993 22.7 9.1 0.26 0.0
1992 1.9 -1.5 0.38 3.8
1991 23.9 11.0 0.00 0.0
1990 17.0 1.3 0.04 0.0
1989 16.0 5.0 0.00 0.0
1988 16.6 4.7 0.00 0.0
1987 9.9 -4.8 0.00 0.0
1986 23.6 7.9 0.00 0.0
1985 26.1 7.0 0.00 0.0
1984 15.5 3.8 0.00 0.0
1983 21.2 6.9 0.02 0.0
1982 19.7 -0.4 0.00 0.0
1981 17.3 8.5 0.42 0.0
1980 25.0 9.6 0.00 0.0
1979 18.0 -2.4 0.00 0.0
1978 23.8 4.5 0.00 0.0
1977 19.4 4.8 0.00 0.0
1976 10.6 3.9 3.00 0.0
1975 11.1 3.3 0.00 0.0
1974 12.8 -1.1 0.00 0.0
1973 12.2 2.8 0.53 0.0
1972 22.8 2.2 0.00 0.0
1971 16.7 5.6 0.00 0.0
1970 12.8 3.3 0.13 0.0
1969 10.6 2.2 0.00 0.0
1968 21.1 -0.6 0.00 0.0
1967 22.8 5.6 0.00 0.0
1966 21.7 7.8 0.00 0.0
1965 8.9 0.0 0.91 7.4
1964 26.1 8.3 0.00 0.0
1963 16.1 1.1 0.00 0.0
1962 12.8 3.3 1.93 0.0
1961 25.0 5.0 0.00 0.0
1960 17.2 3.3 0.05 0.0
1959 13.9 0.6 0.00 0.0
1958 26.7 6.1 0.00 0.0
1957 7.2 4.4 0.00 0.0
1956 26.7 8.3 0.00 0.0
1955 9.4 2.2 0.03 0.0
1954 19.4 5.0 0.00 0.0
1953 5.0 1.1 0.76 0.5
1952 19.4 8.3 0.00 0.0
1951 18.3 2.8 0.00 0.0
1950 15.6 2.2 0.00 0.0
1949 18.3 4.4 0.64 0.0
1948 21.7 5.0 0.00 0.0
1947 18.9 1.1 0.28 0.0
1946 17.2 -2.2 0.00 0.0
1945 10.0 0.6 0.76 0.0
1944 16.7 10.0 0.13 0.0
1943 25.0 6.7 0.00 0.0
1942 21.7 8.3 0.00 0.0
1941 17.2 1.7 0.00 0.0
1940 19.4 3.9 0.00 0.0
1939 12.2 3.9 0.00 0.0
1938 20.0 0.6 0.00 0.0
1937 11.1 1.7 0.51 0.0
1936 8.9 5.6 1.52 0.0
1935 21.7 2.8 0.00 0.0
1934 10.6 4.4 1.32 0.0
1933 16.1 1.1 0.00 0.0
1932 20.0 7.2 0.30 0.0
1931 7.2 0.0 n/a 0.0
1930 18.3 1.7 0.00 0.0
1929 25.0 3.9 0.00 0.0
1928 28.9 4.4 0.00 0.0
1927 7.8 3.3 0.43 0.0
1926 18.9 7.8 0.00 0.0
1925 27.8 10.6 0.00 0.0
1924 18.9 2.2 0.00 0.0
1923 23.3 3.3 0.15 0.0
1922 17.2 -1.1 0.00 0.0
1921 23.3 3.3 0.00 0.0
1920 20.0 2.2 0.00 0.0
1919 29.4 10.0 0.00 0.0
1918 7.8 0.6 0.36 0.0
1917 12.2 4.4 0.56 0.0
1916 20.0 6.7 0.00 0.0
1915 11.7 -0.6 0.61 0.0
1914 16.1 2.8 0.18 0.0
1913 17.8 0.0 0.00 0.0
1912 11.1 5.6 0.25 0.0
1911 18.9 2.2 0.00 0.0
1910 14.4 0.6 0.20 0.0
1909 17.8 1.1 0.00 0.0
1908 13.3 3.3 0.05 0.0
1907 4.4 1.7 0.91 0.0
1906 17.8 4.4 0.20 0.0
1905 20.0 1.1 0.00 0.0
1904 24.4 3.9 0.00 0.0
1903 6.7 -3.3 0.00 0.0
1902 9.4 4.4 1.83 0.0
1901 18.3 -0.6 0.00 0.0
1900 20.0 3.3 0.00 0.0
1899 5.6 0.0 1.73 0.0
1898 13.3 3.9 1.24 0.0
1897 31.1 7.8 0.00 0.0
1896 12.2 3.9 0.00 0.0
1895 20.6 2.2 0.00 0.0
1894 20.6 8.3 0.00 0.0
1893 7.8 2.8 0.23 0.0
1892 23.3 -3.9 0.00 0.0
1891 15.0 1.7 0.00 0.0
1890 20.0 3.9 0.25 0.0
1889 23.3 1.1 0.00 0.0
1888 8.3 -1.1 0.00 0.0
1887 5.0 -0.6 0.36 0.3
1886 17.8 0.0 0.74 0.0
1885 17.8 2.2 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 5/20?
For the date of May 20, the highest temperature ever reached in Calgary history is 31.1 °C which happened in 1897.
Highest Temperatures in Calgary on May 20
Rank Temperature Year
1 31.1 °C 1897
2 29.4 °C 1919
3 28.9 °C 1928
4 27.8 °C 1925
5 27.4 °C 2023
6 26.7 °C 1958
6 26.7 °C 1956
8 26.1 °C 1985
8 26.1 °C 1964
10 25.0 °C 1929
10 25.0 °C 1980
10 25.0 °C 1943
10 25.0 °C 1961
What's the all-time low for Calgary on 5/20?
For the date of May 20, the lowest temperature ever reached in Calgary history is -4.8 °C which happened in 1987.
Lowest Temperatures in Calgary on May 20
Rank Temperature Year
1 -4.8 °C 1987
2 -3.9 °C 1892
3 -3.3 °C 1903
4 -2.4 °C 1979
5 -2.2 °C 1946
6 -1.8 °C 2021
7 -1.7 °C 2019
8 -1.5 °C 1992
9 -1.1 °C 1922
9 -1.1 °C 1974
9 -1.1 °C 1888
Lowest High Temperatures in Calgary on May 20
Rank Temperature Year
1 1.9 °C 1992
2 2.2 °C 1997
3 2.8 °C 2021
4 4.4 °C 1907
5 5.0 °C 1953
5 5.0 °C 1887
7 5.6 °C 1899
8 6.2 °C 1994
9 6.7 °C 1903
10 7.2 °C 1931
10 7.2 °C 1957
What's the most it has ever rained in Calgary on 5/20?
For the date of May 20, the most precipitation ever recorded in Calgary history is 3.00 cm which happened in 1976.
All-Time Most Precipitation in Calgary on May 20
Rank Precipitation Year
1 3.00 cm 1976
2 2.46 cm 1997
3 1.93 cm 1962
4 1.83 cm 1902
5 1.73 cm 1899
6 1.52 cm 1936
7 1.36 cm 1994
8 1.32 cm 1934
9 1.24 cm 1898
10 1.10 cm 2007
All-Time Most Snow in Calgary on May 20
Rank Precipitation Year
1 27.8 cm 1997
2 7.4 cm 1965
3 3.8 cm 1992
4 2.4 cm 1995
5 1.2 cm 2021
6 0.5 cm 1953
7 0.3 cm 1887
8 0.2 cm 2022
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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