Calgary September 20 Weather Records

Daily averages and all-time records for weather in Calgary, Alberta for the date of September 20.
September 20 All-Time Records
1881–2024
Highest temperature 29.4 °C 1922
Lowest temperature -7.8 °C 1934
Lowest daily high 0.6 °C 1895
Highest daily low 11.7 °C 1918
Most precipitation 3.05 cm 1945
Most snow 11.2 cm 1955
September 20 Average Weather
1991–2020 1
Average high 17.1 °C
Average low 3.9 °C
Chance precipitation 29.1%
Chance snow 5.8%
Calgary September 20 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 8.9 4.5 0.03 0.0
2022 13.7 1.6 0.00 0.0
2021 17.8 1.2 0.00 0.0
2020 19.8 8.0 0.00 0.0
2019 15.7 7.5 0.02 n/a
2018 9.6 0.5 0.00 0.0
2017 8.7 0.7 0.04 0.0
2016 6.9 4.2 0.09 0.0
2015 19.9 6.4 0.22 0.0
2014 20.7 5.7 0.00 0.0
2013 22.6 4.1 0.00 0.0
2012 26.1 6.3 0.00 0.0
2011 17.1 2.0 0.00 0.0
2010 5.0 1.6 0.10 0.0
2009 15.8 5.9 0.20 0.0
2008 23.9 4.8 0.00 0.0
2007 13.0 0.7 0.42 0.0
2006 15.8 6.1 0.00 0.0
2005 14.2 3.6 0.00 0.0
2004 6.4 1.2 0.16 0.0
2003 15.8 4.7 0.00 0.0
2002 11.8 0.6 0.00 0.0
2001 16.2 2.8 0.00 0.0
2000 10.0 0.3 0.36 0.4
1999 26.6 4.7 0.00 0.0
1998 14.2 4.9 0.23 0.0
1997 23.7 3.1 0.00 0.0
1996 10.9 1.7 0.22 0.0
1995 6.2 -3.1 0.02 0.4
1994 14.1 0.7 0.00 0.0
1993 n/a n/a n/a n/a
1992 22.5 5.8 0.00 0.0
1991 14.0 5.7 0.00 0.0
1990 18.4 5.5 0.00 0.0
1989 18.0 2.0 0.00 0.0
1988 8.7 1.2 0.08 0.0
1987 26.3 5.5 0.00 0.0
1986 8.8 1.2 0.12 0.0
1985 17.5 0.4 0.00 0.0
1984 9.8 0.4 1.14 0.0
1983 14.6 -4.9 0.00 0.0
1982 21.2 2.6 0.00 0.0
1981 15.1 5.7 0.08 0.0
1980 15.1 4.4 0.02 0.0
1979 19.8 4.6 0.00 0.0
1978 17.3 -0.4 0.00 0.0
1977 18.8 6.6 0.00 0.0
1976 24.4 5.0 0.00 0.0
1975 21.7 0.6 0.00 0.0
1974 17.2 1.7 0.00 0.0
1973 13.9 5.6 0.18 0.0
1972 7.2 -1.1 0.00 0.0
1971 8.9 -0.6 0.05 0.5
1970 15.0 2.2 0.30 0.0
1969 8.9 5.0 0.36 0.0
1968 3.9 -0.6 0.94 5.3
1967 18.9 2.8 0.00 0.0
1966 20.6 9.4 0.00 0.0
1965 14.4 0.6 0.03 0.0
1964 11.7 4.4 0.51 0.0
1963 21.7 1.7 0.00 0.0
1962 23.9 6.1 0.00 0.0
1961 8.3 1.7 0.30 0.3
1960 7.8 1.7 0.20 0.0
1959 10.0 1.1 0.48 0.0
1958 14.4 2.2 0.00 0.0
1957 15.6 6.1 0.05 0.0
1956 21.1 7.8 0.48 0.0
1955 4.4 0.6 1.37 11.2
1954 15.0 -2.2 0.00 0.0
1953 12.2 -0.6 0.00 0.0
1952 17.8 2.2 0.00 0.0
1951 11.1 1.1 0.05 0.0
1950 25.0 5.6 0.00 0.0
1949 15.0 0.0 0.00 0.0
1948 21.7 2.8 0.00 0.0
1947 16.7 1.7 0.10 0.0
1946 19.4 10.6 0.03 0.0
1945 5.0 3.3 3.05 2.3
1944 14.4 2.2 0.00 0.0
1943 18.3 9.4 0.00 0.0
1942 14.4 4.4 0.23 0.0
1941 6.7 2.2 0.58 0.0
1940 22.8 3.3 0.00 0.0
1939 27.2 7.8 0.00 0.0
1938 28.3 8.3 0.00 0.0
1937 20.0 10.0 0.00 0.0
1936 25.0 6.1 0.00 0.0
1935 18.9 -0.6 0.00 0.0
1934 10.6 -7.8 0.00 0.0
1933 20.6 2.8 0.00 0.0
1932 8.9 1.7 0.00 0.0
1931 15.6 2.2 0.51 0.0
1930 23.3 1.7 0.00 0.0
1929 20.0 4.4 0.00 0.0
1928 21.1 -1.1 0.00 0.0
1927 22.2 3.3 0.00 0.0
1926 15.6 -1.1 0.00 0.0
1925 18.3 -3.9 0.00 0.0
1924 14.4 -3.3 0.00 0.0
1923 8.9 4.4 0.20 0.0
1922 29.4 5.0 0.00 0.0
1921 18.3 1.7 0.20 0.0
1920 20.6 2.2 0.00 0.0
1919 15.0 6.1 0.00 0.0
1918 24.4 11.7 0.00 0.0
1917 22.2 8.9 0.10 0.0
1916 20.6 1.7 0.00 0.0
1915 18.9 1.1 0.00 0.0
1914 15.6 1.1 0.00 0.0
1913 20.6 -1.1 0.00 0.0
1912 14.4 0.6 0.00 0.0
1911 15.6 -0.6 0.00 0.0
1910 25.0 10.0 0.00 0.0
1909 13.9 5.0 0.00 0.0
1908 17.8 6.7 0.00 0.0
1907 13.9 1.1 0.00 0.0
1906 12.8 1.1 0.00 0.0
1905 21.7 7.2 0.00 0.0
1904 13.3 -3.9 0.00 0.0
1903 12.2 -0.6 0.00 0.0
1902 16.1 -4.4 0.00 0.0
1901 21.7 2.2 0.00 0.0
1900 18.9 5.0 0.00 0.0
1899 22.2 8.9 0.00 0.0
1898 20.6 5.6 0.00 0.0
1897 26.1 7.8 0.00 0.0
1896 19.4 2.2 0.00 0.0
1895 0.6 -3.3 0.00 0.0
1894 13.9 0.0 0.00 0.0
1893 1.7 -1.1 0.25 2.5
1892 20.6 3.9 0.00 0.0
1891 15.6 -4.4 0.00 0.0
1890 16.7 1.7 0.00 0.0
1889 28.9 6.7 0.00 0.0
1888 26.7 0.6 0.00 0.0
1887 12.8 -1.7 0.00 0.0
1886 23.3 2.8 0.00 0.0
1885 21.1 2.8 0.00 0.0
1884 17.2 1.7 0.00 0.0
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 9/20?
For the date of Sep 20, the highest temperature ever reached in Calgary history is 29.4 °C which happened in 1922.
Highest Temperatures in Calgary on September 20
Rank Temperature Year
1 29.4 °C 1922
2 28.9 °C 1889
3 28.3 °C 1938
4 27.2 °C 1939
5 26.7 °C 1888
6 26.6 °C 1999
7 26.3 °C 1987
8 26.1 °C 2012
8 26.1 °C 1897
10 25.0 °C 1950
10 25.0 °C 1910
10 25.0 °C 1936
What's the all-time low for Calgary on 9/20?
For the date of Sep 20, the lowest temperature ever reached in Calgary history is -7.8 °C which happened in 1934.
Lowest Temperatures in Calgary on September 20
Rank Temperature Year
1 -7.8 °C 1934
2 -4.9 °C 1983
3 -4.4 °C 1891
3 -4.4 °C 1902
5 -3.9 °C 1904
5 -3.9 °C 1925
7 -3.3 °C 1895
7 -3.3 °C 1924
9 -3.1 °C 1995
10 -2.2 °C 1954
Lowest High Temperatures in Calgary on September 20
Rank Temperature Year
1 0.6 °C 1895
2 1.7 °C 1893
3 3.9 °C 1968
4 4.4 °C 1955
5 5.0 °C 2010
5 5.0 °C 1945
7 6.2 °C 1995
8 6.4 °C 2004
9 6.7 °C 1941
10 6.9 °C 2016
What's the most it has ever rained in Calgary on 9/20?
For the date of Sep 20, the most precipitation ever recorded in Calgary history is 3.05 cm which happened in 1945.
All-Time Most Precipitation in Calgary on September 20
Rank Precipitation Year
1 3.05 cm 1945
2 1.37 cm 1955
3 1.14 cm 1984
4 0.94 cm 1968
5 0.58 cm 1941
6 0.51 cm 1931
6 0.51 cm 1964
8 0.48 cm 1956
8 0.48 cm 1959
10 0.42 cm 2007
All-Time Most Snow in Calgary on September 20
Rank Precipitation Year
1 11.2 cm 1955
2 5.3 cm 1968
3 2.5 cm 1893
4 2.3 cm 1945
5 0.5 cm 1971
6 0.4 cm 1995
6 0.4 cm 2000
8 0.3 cm 1961
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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