Calgary September 12 Weather Records

Daily averages and all-time records for weather in Calgary, Alberta for the date of September 12.
September 12 All-Time Records
1881–2024
Highest temperature 30.0 °C 1937
Lowest temperature -6.1 °C 1890
Lowest daily high 3.3 °C 1970
Highest daily low 13.4 °C 2023
Most precipitation 9.26 cm 1985
Most snow 8.9 cm 1907
September 12 Average Weather
1991–2020 1
Average high 18.8 °C
Average low 5.2 °C
Chance precipitation 30.7%
Chance snow 2.5%
Calgary September 12 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 23.9 13.4 0.04 0.0
2022 20.0 11.1 0.00 0.0
2021 16.1 9.2 0.23 0.0
2020 18.2 8.8 0.00 0.0
2019 21.2 5.1 0.00 0.0
2018 8.1 0.2 0.00 0.0
2017 20.5 7.1 0.12 0.0
2016 12.2 1.8 0.02 0.0
2015 28.6 9.7 0.00 0.0
2014 9.4 0.2 0.22 0.0
2013 28.8 9.4 0.00 0.0
2012 18.8 1.2 0.00 0.0
2011 12.3 7.7 0.00 0.0
2010 16.0 1.3 0.04 0.0
2009 26.6 5.8 0.00 0.0
2008 16.7 5.6 0.62 0.0
2007 11.8 2.4 2.00 0.0
2006 22.2 9.6 0.00 0.0
2005 11.2 2.6 0.10 0.0
2004 15.2 5.8 0.02 0.0
2003 12.5 2.9 0.16 0.0
2002 27.1 4.9 0.00 0.0
2001 18.4 7.4 0.00 0.0
2000 21.9 9.3 0.00 0.0
1999 17.5 -0.5 0.00 0.0
1998 24.3 4.4 0.00 0.0
1997 13.5 4.9 0.72 0.0
1996 26.5 4.6 0.00 0.0
1995 25.9 6.9 0.00 0.0
1994 18.3 0.9 0.00 0.0
1993 7.5 1.5 0.08 0.0
1992 11.1 4.7 0.16 0.0
1991 24.9 5.0 0.00 0.0
1990 21.0 6.5 0.60 0.0
1989 22.9 4.3 0.00 0.0
1988 23.2 5.4 0.00 0.0
1987 28.2 6.6 0.00 0.0
1986 5.7 2.1 0.00 0.0
1985 11.8 8.2 9.26 0.0
1984 11.3 3.5 1.62 0.0
1983 16.5 -0.3 0.00 0.0
1982 8.9 2.8 0.08 0.0
1981 19.0 8.3 0.00 0.0
1980 10.4 5.6 0.08 0.0
1979 15.7 1.3 0.00 0.0
1978 10.8 5.2 1.53 0.0
1977 21.3 3.2 0.00 0.0
1976 11.7 6.1 0.94 0.0
1975 24.4 2.2 0.00 0.0
1974 15.6 -1.7 0.00 0.0
1973 15.0 3.9 0.15 0.0
1972 16.7 0.0 0.00 0.0
1971 19.4 2.8 0.00 0.0
1970 3.3 -5.0 0.00 0.0
1969 28.9 8.3 0.00 0.0
1968 20.6 7.2 0.00 0.0
1967 16.1 2.8 0.05 0.0
1966 17.2 7.2 0.00 0.0
1965 11.7 -2.2 0.00 0.0
1964 23.9 0.0 0.00 0.0
1963 25.6 8.3 0.00 0.0
1962 10.0 0.6 0.03 0.0
1961 13.3 1.1 0.00 0.0
1960 26.7 5.6 0.00 0.0
1959 26.1 3.3 0.00 0.0
1958 26.7 7.8 3.07 0.0
1957 15.6 6.1 0.25 0.0
1956 15.6 3.9 0.51 0.0
1955 14.4 8.9 0.48 0.0
1954 17.8 3.9 0.00 0.0
1953 26.1 10.0 0.00 0.0
1952 10.6 3.3 0.97 0.0
1951 17.2 3.3 0.00 0.0
1950 14.4 -5.6 0.00 0.0
1949 16.7 -4.4 0.00 0.0
1948 12.8 7.8 0.00 0.0
1947 24.4 11.1 0.33 0.0
1946 24.4 10.0 0.00 0.0
1945 23.9 1.7 0.00 0.0
1944 28.9 7.8 0.00 0.0
1943 29.4 5.0 0.00 0.0
1942 25.0 4.4 0.46 0.0
1941 15.6 5.6 0.00 0.0
1940 24.4 7.8 0.00 0.0
1939 5.6 1.7 0.33 0.0
1938 23.9 8.9 0.00 0.0
1937 30.0 10.0 0.00 0.0
1936 13.3 1.7 0.00 0.0
1935 15.6 1.7 0.00 0.0
1934 8.3 1.7 0.20 2.0
1933 20.0 3.3 0.00 0.0
1932 18.9 1.1 0.00 0.0
1931 12.8 5.0 0.51 0.0
1930 21.7 3.3 0.00 0.0
1929 20.0 5.6 0.00 0.0
1928 24.4 2.2 0.00 0.0
1927 20.0 5.6 0.00 0.0
1926 17.8 -2.2 0.00 0.0
1925 13.3 7.2 0.10 0.0
1924 23.3 1.1 0.00 0.0
1923 26.7 -1.7 0.00 0.0
1922 13.3 7.8 2.31 0.0
1921 6.7 -1.7 0.00 0.0
1920 16.7 7.2 0.18 0.0
1919 21.1 5.6 0.36 0.0
1918 27.2 8.9 0.00 0.0
1917 22.2 7.2 0.00 0.0
1916 18.3 3.3 0.25 0.0
1915 6.7 -4.4 0.05 0.5
1914 11.1 1.7 0.30 0.0
1913 27.8 1.1 0.00 0.0
1912 18.9 7.8 0.00 0.0
1911 23.3 6.7 0.00 0.0
1910 15.6 -1.1 0.00 0.0
1909 21.1 2.2 0.00 0.0
1908 27.8 5.6 0.00 0.0
1907 3.3 -1.1 0.89 8.9
1906 13.3 -4.4 0.00 0.0
1905 18.9 -1.1 0.00 0.0
1904 12.2 0.6 0.00 0.0
1903 5.6 -0.6 0.00 0.0
1902 23.9 4.4 0.00 0.0
1901 17.8 -0.6 0.00 0.0
1900 22.2 8.3 0.00 0.0
1899 23.3 3.3 0.00 0.0
1898 22.8 7.2 0.00 0.0
1897 20.0 2.2 0.00 0.0
1896 4.4 0.6 0.66 4.3
1895 11.7 3.9 1.02 0.0
1894 18.3 1.7 1.07 0.0
1893 19.4 2.8 0.00 0.0
1892 23.3 2.2 0.00 0.0
1891 16.1 3.9 0.00 0.0
1890 13.3 -6.1 0.00 0.0
1889 5.6 -4.4 0.00 0.0
1888 30.0 5.6 0.00 0.0
1887 11.7 0.6 0.08 0.0
1886 23.9 4.4 0.00 0.0
1885 17.2 1.1 0.00 0.0
1884 11.1 0.0 0.64 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 9/12?
For the date of Sep 12, the highest temperature ever reached in Calgary history is 30.0 °C which has happened 2 times, most recently in 1937.
Highest Temperatures in Calgary on September 12
Rank Temperature Year
1 30.0 °C 1888
1 30.0 °C 1937
3 29.4 °C 1943
4 28.9 °C 1969
4 28.9 °C 1944
6 28.8 °C 2013
7 28.6 °C 2015
8 28.2 °C 1987
9 27.8 °C 1913
9 27.8 °C 1908
What's the all-time low for Calgary on 9/12?
For the date of Sep 12, the lowest temperature ever reached in Calgary history is -6.1 °C which happened in 1890.
Lowest Temperatures in Calgary on September 12
Rank Temperature Year
1 -6.1 °C 1890
2 -5.6 °C 1950
3 -5.0 °C 1970
4 -4.4 °C 1889
4 -4.4 °C 1906
4 -4.4 °C 1949
4 -4.4 °C 1915
8 -2.2 °C 1926
8 -2.2 °C 1965
10 -1.7 °C 1923
10 -1.7 °C 1974
10 -1.7 °C 1921
Lowest High Temperatures in Calgary on September 12
Rank Temperature Year
1 3.3 °C 1970
1 3.3 °C 1907
3 4.4 °C 1896
4 5.6 °C 1889
4 5.6 °C 1903
4 5.6 °C 1939
7 5.7 °C 1986
8 6.7 °C 1921
8 6.7 °C 1915
10 7.5 °C 1993
What's the most it has ever rained in Calgary on 9/12?
For the date of Sep 12, the most precipitation ever recorded in Calgary history is 9.26 cm which happened in 1985.
All-Time Most Precipitation in Calgary on September 12
Rank Precipitation Year
1 9.26 cm 1985
2 3.07 cm 1958
3 2.31 cm 1922
4 2.00 cm 2007
5 1.62 cm 1984
6 1.53 cm 1978
7 1.07 cm 1894
8 1.02 cm 1895
9 0.97 cm 1952
10 0.94 cm 1976
All-Time Most Snow in Calgary on September 12
Rank Precipitation Year
1 8.9 cm 1907
2 4.3 cm 1896
3 2.0 cm 1934
4 0.5 cm 1915
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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