Calgary September 18 Weather Records

Daily averages and all-time records for weather in Calgary, Alberta for the date of September 18.
September 18 All-Time Records
1881–2024
Highest temperature 32.2 °C 1981
Lowest temperature -3.9 °C 1957
Lowest daily high 1.1 °C 1947
Highest daily low 12.2 °C 1918
Most precipitation 1.80 cm 1968
Most snow 15.5 cm 1947
September 18 Average Weather
1991–2020 1
Average high 17.6 °C
Average low 4.2 °C
Chance precipitation 28.8%
Chance snow 4.9%
Calgary September 18 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 20.5 8.9 0.18 0.0
2022 18.3 2.5 0.00 0.0
2021 23.1 11.4 0.00 0.0
2020 20.2 6.7 0.00 0.0
2019 16.7 5.0 0.12 n/a
2018 6.8 2.8 0.04 0.0
2017 18.0 4.6 0.00 0.0
2016 18.2 5.4 0.00 0.0
2015 18.6 4.1 0.00 0.0
2014 21.3 11.6 0.00 0.0
2013 11.0 6.0 1.62 0.0
2012 27.0 7.2 0.00 0.0
2011 20.2 2.8 0.00 0.0
2010 5.8 -0.5 0.00 0.0
2009 24.0 6.2 0.00 0.0
2008 24.0 8.6 0.00 0.0
2007 11.9 1.8 0.00 0.0
2006 14.6 -1.6 0.00 0.0
2005 19.3 2.6 0.00 0.0
2004 11.9 5.2 0.00 0.0
2003 15.6 -1.7 0.00 0.0
2002 18.0 3.9 0.00 0.0
2001 23.6 7.2 0.00 0.0
2000 19.5 8.0 0.94 0.0
1999 16.2 5.7 0.00 0.0
1998 14.7 7.4 0.78 0.0
1997 6.5 5.5 0.34 1.4
1996 10.1 4.3 0.46 0.0
1995 5.5 -0.5 0.48 7.9
1994 22.5 10.6 0.00 0.0
1993 19.3 1.1 0.00 0.0
1992 20.7 -2.2 0.00 0.0
1991 17.0 -0.8 0.00 0.0
1990 22.4 0.9 0.00 0.0
1989 11.3 3.2 0.00 0.0
1988 11.7 -2.3 0.00 0.0
1987 19.6 2.6 0.00 0.0
1986 7.2 3.1 0.02 0.0
1985 5.6 -0.3 0.05 0.0
1984 26.3 8.4 0.00 0.0
1983 7.0 -1.6 0.00 0.0
1982 20.4 8.2 0.00 0.0
1981 32.2 8.9 0.00 0.0
1980 9.9 3.2 0.04 0.0
1979 26.9 4.9 0.00 0.0
1978 8.4 1.0 0.24 0.0
1977 17.2 1.2 0.00 0.0
1976 15.6 8.3 0.00 0.0
1975 13.3 1.7 0.13 0.0
1974 14.4 3.9 0.05 0.0
1973 16.7 0.0 0.00 0.0
1972 8.3 1.7 0.00 0.0
1971 18.3 4.4 0.00 0.0
1970 21.1 2.2 0.00 0.0
1969 22.8 5.6 0.00 0.0
1968 7.8 1.7 1.80 0.0
1967 24.4 2.8 0.00 0.0
1966 28.3 6.7 0.00 0.0
1965 9.4 -0.6 0.79 1.3
1964 11.7 4.4 0.00 0.0
1963 19.4 1.7 0.00 0.0
1962 18.3 5.0 0.00 0.0
1961 19.4 1.7 0.28 0.0
1960 25.6 11.1 0.00 0.0
1959 14.4 0.0 0.00 0.0
1958 18.3 4.4 0.00 0.0
1957 7.2 -3.9 0.00 0.0
1956 23.9 6.7 0.00 0.0
1955 18.3 5.6 0.00 0.0
1954 17.2 2.8 0.00 0.0
1953 18.9 5.6 0.71 0.0
1952 16.1 5.0 0.41 0.0
1951 25.6 8.3 0.03 0.0
1950 23.9 1.7 0.00 0.0
1949 18.9 -1.1 0.00 0.0
1948 21.7 8.3 0.00 0.0
1947 1.1 -1.1 1.55 15.5
1946 17.8 2.8 0.00 0.0
1945 5.6 0.6 0.20 1.0
1944 8.3 2.8 0.13 0.0
1943 10.6 0.6 0.00 0.0
1942 12.8 -2.8 0.00 0.0
1941 5.6 1.7 1.19 0.0
1940 15.6 5.0 0.00 0.0
1939 15.0 3.3 0.00 0.0
1938 31.1 6.7 0.00 0.0
1937 24.4 7.8 0.05 0.0
1936 20.6 2.8 0.00 0.0
1935 17.8 -0.6 0.00 0.0
1934 11.1 0.0 1.52 15.2
1933 12.2 6.7 0.00 0.0
1932 6.7 1.7 1.04 0.0
1931 17.2 1.7 0.15 0.0
1930 13.9 4.4 0.51 0.0
1929 26.1 3.3 0.00 0.0
1928 27.2 5.0 0.00 0.0
1927 20.0 0.0 0.00 0.0
1926 13.9 -1.1 0.05 0.5
1925 3.9 0.6 0.38 0.0
1924 8.3 3.3 1.52 0.0
1923 17.8 6.7 0.00 0.0
1922 26.1 2.2 0.00 0.0
1921 23.3 0.0 0.00 0.0
1920 24.4 8.9 0.56 0.0
1919 23.9 5.0 0.00 0.0
1918 25.0 12.2 0.00 0.0
1917 17.8 8.9 0.00 0.0
1916 26.1 6.7 0.00 0.0
1915 21.1 -1.1 0.00 0.0
1914 24.4 5.0 0.00 0.0
1913 23.3 7.8 0.53 0.0
1912 17.2 2.2 0.25 0.0
1911 14.4 2.2 0.00 0.0
1910 23.9 6.1 0.00 0.0
1909 17.8 5.0 0.00 0.0
1908 15.6 3.3 0.00 0.0
1907 15.0 -2.8 0.00 0.0
1906 27.8 3.3 0.00 0.0
1905 16.1 -3.3 0.00 0.0
1904 7.2 1.7 0.61 0.0
1903 19.4 7.8 0.00 0.0
1902 13.3 -2.2 0.00 0.0
1901 15.6 2.8 0.00 0.0
1900 18.3 3.3 0.00 0.0
1899 19.4 2.8 0.00 0.0
1898 26.1 0.6 0.00 0.0
1897 23.3 6.1 0.00 0.0
1896 17.2 6.1 0.00 0.0
1895 16.7 8.3 0.00 0.0
1894 17.8 5.6 0.00 0.0
1893 7.2 -1.1 0.00 0.0
1892 26.7 1.7 0.00 0.0
1891 25.0 11.7 0.00 0.0
1890 15.0 -2.2 0.00 0.0
1889 30.0 7.2 0.00 0.0
1888 16.7 9.4 0.15 0.0
1887 12.2 0.0 0.41 0.0
1886 15.0 1.1 0.00 0.0
1885 25.0 1.1 0.00 0.0
1884 12.2 -2.2 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 9/18?
For the date of Sep 18, the highest temperature ever reached in Calgary history is 32.2 °C which happened in 1981.
Highest Temperatures in Calgary on September 18
Rank Temperature Year
1 32.2 °C 1981
2 31.1 °C 1938
3 30.0 °C 1889
4 28.3 °C 1966
5 27.8 °C 1906
6 27.2 °C 1928
7 27.0 °C 2012
8 26.9 °C 1979
9 26.7 °C 1892
10 26.3 °C 1984
What's the all-time low for Calgary on 9/18?
For the date of Sep 18, the lowest temperature ever reached in Calgary history is -3.9 °C which happened in 1957.
Lowest Temperatures in Calgary on September 18
Rank Temperature Year
1 -3.9 °C 1957
2 -3.3 °C 1905
3 -2.8 °C 1907
3 -2.8 °C 1942
5 -2.3 °C 1988
6 -2.2 °C 1902
6 -2.2 °C 1992
6 -2.2 °C 1890
6 -2.2 °C 1884
10 -1.7 °C 2003
Lowest High Temperatures in Calgary on September 18
Rank Temperature Year
1 1.1 °C 1947
2 3.9 °C 1925
3 5.5 °C 1995
4 5.6 °C 1985
4 5.6 °C 1945
4 5.6 °C 1941
7 5.8 °C 2010
8 6.5 °C 1997
9 6.7 °C 1932
10 6.8 °C 2018
What's the most it has ever rained in Calgary on 9/18?
For the date of Sep 18, the most precipitation ever recorded in Calgary history is 1.80 cm which happened in 1968.
All-Time Most Precipitation in Calgary on September 18
Rank Precipitation Year
1 1.80 cm 1968
2 1.62 cm 2013
3 1.55 cm 1947
4 1.52 cm 1934
4 1.52 cm 1924
6 1.19 cm 1941
7 1.04 cm 1932
8 0.94 cm 2000
9 0.79 cm 1965
10 0.78 cm 1998
All-Time Most Snow in Calgary on September 18
Rank Precipitation Year
1 15.5 cm 1947
2 15.2 cm 1934
3 7.9 cm 1995
4 1.4 cm 1997
5 1.3 cm 1965
6 1.0 cm 1945
7 0.5 cm 1926
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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