Calgary May 18 Weather Records

Daily averages and all-time records for weather in Calgary, Alberta for the date of May 18.
May 18 All-Time Records
1881–2024
Highest temperature 29.4 °C 1925
Lowest temperature -4.4 °C 1965
Lowest daily high 2.2 °C 1903
Highest daily low 12.5 °C 2006
Most precipitation 6.50 cm 1902
Most snow 19.1 cm 1903
May 18 Average Weather
1991–2020 1
Average high 16.6 °C
Average low 3.8 °C
Chance precipitation 38.7%
Chance snow 7.3%
Calgary May 18 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 20.6 3.5 0.00 0.0
2022 17.1 1.9 0.00 0.0
2021 16.8 6.6 0.00 0.0
2020 19.9 8.9 0.00 0.0
2019 6.7 2.1 0.28 0.0
2018 14.4 5.7 0.18 0.0
2017 16.3 1.0 0.00 0.0
2016 24.2 8.4 0.06 0.0
2015 14.5 1.9 0.00 0.0
2014 14.1 7.1 n/a n/a
2013 20.9 n/a n/a n/a
2012 11.6 1.9 0.04 0.0
2011 18.5 5.5 0.00 0.0
2010 25.3 7.7 0.14 0.0
2009 8.7 -0.6 0.14 0.4
2008 23.1 12.0 0.00 0.0
2007 12.3 6.3 0.00 0.0
2006 26.0 12.5 0.00 0.0
2005 18.7 7.4 0.00 0.0
2004 21.6 3.2 0.00 0.0
2003 9.3 -2.0 0.00 0.0
2002 14.6 1.5 0.06 0.0
2001 16.3 1.4 0.00 0.0
2000 18.2 5.8 0.26 0.0
1999 17.1 0.2 0.14 0.0
1998 15.7 6.8 0.56 0.0
1997 10.2 -0.2 0.10 1.0
1996 17.2 5.3 0.07 0.0
1995 9.5 4.7 0.42 0.0
1994 10.6 4.4 0.06 0.0
1993 20.1 4.0 0.00 0.0
1992 24.8 9.0 0.00 0.0
1991 12.9 7.7 0.07 0.0
1990 12.8 3.0 0.02 0.0
1989 12.9 5.0 0.00 0.0
1988 16.4 2.9 0.00 0.0
1987 15.4 4.2 0.00 0.0
1986 20.3 5.3 0.00 0.0
1985 22.0 8.5 0.00 0.0
1984 19.0 5.6 0.00 0.0
1983 14.2 1.4 0.12 0.0
1982 14.4 5.0 0.54 0.0
1981 19.5 3.1 0.00 0.0
1980 25.7 9.2 0.00 0.0
1979 14.0 -0.3 1.24 3.0
1978 16.5 4.5 0.00 0.0
1977 5.8 -0.4 0.55 4.8
1976 17.8 1.7 0.00 0.0
1975 16.7 1.1 0.18 0.5
1974 5.6 0.0 2.77 6.6
1973 18.9 10.6 0.00 0.0
1972 11.7 0.0 0.25 0.0
1971 13.3 1.1 0.00 0.0
1970 15.6 -3.3 0.00 0.0
1969 12.2 5.0 0.00 0.0
1968 17.8 -0.6 0.00 0.0
1967 18.9 -0.6 0.00 0.0
1966 15.6 1.7 0.00 0.0
1965 14.4 -4.4 0.00 0.0
1964 22.2 8.3 0.00 0.0
1963 14.4 4.4 0.00 0.0
1962 15.0 6.1 0.25 0.0
1961 22.2 3.3 0.00 0.0
1960 7.8 1.1 0.08 0.0
1959 11.1 5.6 0.03 0.0
1958 20.6 -1.7 0.00 0.0
1957 21.1 5.6 0.00 0.0
1956 25.6 3.3 0.00 0.0
1955 22.8 10.0 0.00 0.0
1954 24.4 8.9 0.00 0.0
1953 23.3 1.1 0.00 0.0
1952 20.0 9.4 0.18 0.0
1951 12.2 5.6 0.28 0.0
1950 12.8 1.1 0.00 0.0
1949 10.6 2.2 0.00 0.0
1948 13.3 8.3 0.20 0.0
1947 16.7 2.2 0.00 0.0
1946 8.3 2.2 0.00 0.0
1945 6.1 1.1 0.46 0.0
1944 15.0 10.6 0.03 0.0
1943 20.0 6.1 0.00 0.0
1942 15.6 -1.1 0.00 0.0
1941 14.4 5.0 0.00 0.0
1940 23.3 6.7 0.05 0.0
1939 17.8 5.0 0.05 0.0
1938 10.6 4.4 0.20 0.0
1937 23.9 5.6 0.00 0.0
1936 20.0 0.0 0.00 0.0
1935 15.6 3.9 0.25 0.0
1934 18.9 1.7 0.00 0.0
1933 9.4 1.1 0.10 0.0
1932 14.4 1.7 0.00 0.0
1931 2.8 1.1 0.00 0.0
1930 17.8 2.2 0.00 0.0
1929 16.7 0.6 0.00 0.0
1928 22.8 2.2 0.00 0.0
1927 6.1 -1.1 0.51 0.0
1926 17.8 3.9 0.00 0.0
1925 29.4 4.4 0.00 0.0
1924 15.6 1.7 1.22 0.0
1923 17.2 1.1 0.10 0.0
1922 23.9 4.4 0.00 0.0
1921 25.6 2.2 0.00 0.0
1920 17.2 3.9 0.00 0.0
1919 27.2 7.2 0.00 0.0
1918 4.4 0.0 0.46 4.6
1917 16.7 -2.2 0.00 0.0
1916 18.9 0.6 0.05 0.0
1915 8.3 3.3 0.00 0.0
1914 18.9 7.8 0.10 0.0
1913 13.9 1.7 0.00 0.0
1912 17.8 4.4 0.15 0.0
1911 17.2 -0.6 0.00 0.0
1910 10.6 5.0 0.71 0.0
1909 11.1 1.1 0.97 9.7
1908 15.6 1.1 0.00 0.0
1907 13.9 3.3 0.00 0.0
1906 11.1 2.2 0.20 0.0
1905 14.4 1.7 0.30 0.0
1904 20.6 10.0 0.00 0.0
1903 2.2 -2.2 1.91 19.1
1902 6.1 5.6 6.50 0.0
1901 16.7 5.6 0.00 0.0
1900 13.3 2.8 0.05 0.0
1899 12.2 2.8 3.10 0.0
1898 15.6 6.1 0.61 0.0
1897 26.1 6.1 0.00 0.0
1896 6.7 1.7 1.55 0.0
1895 20.6 1.7 0.00 0.0
1894 20.6 3.9 0.00 0.0
1893 9.4 5.0 1.78 0.0
1892 17.8 0.0 0.00 0.0
1891 14.4 0.6 0.00 0.0
1890 17.8 4.4 0.00 0.0
1889 10.0 4.4 0.00 0.0
1888 8.3 0.6 0.61 6.1
1887 28.9 5.0 0.30 0.0
1886 22.2 5.0 0.00 0.0
1885 17.2 5.0 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 5/18?
For the date of May 18, the highest temperature ever reached in Calgary history is 29.4 °C which happened in 1925.
Highest Temperatures in Calgary on May 18
Rank Temperature Year
1 29.4 °C 1925
2 28.9 °C 1887
3 27.2 °C 1919
4 26.1 °C 1897
5 26.0 °C 2006
6 25.7 °C 1980
7 25.6 °C 1921
7 25.6 °C 1956
9 25.3 °C 2010
10 24.8 °C 1992
What's the all-time low for Calgary on 5/18?
For the date of May 18, the lowest temperature ever reached in Calgary history is -4.4 °C which happened in 1965.
Lowest Temperatures in Calgary on May 18
Rank Temperature Year
1 -4.4 °C 1965
2 -3.3 °C 1970
3 -2.2 °C 1917
3 -2.2 °C 1903
5 -2.0 °C 2003
6 -1.7 °C 1958
7 -1.1 °C 1942
7 -1.1 °C 1927
9 -0.6 °C 1967
9 -0.6 °C 1911
9 -0.6 °C 1968
9 -0.6 °C 2009
Lowest High Temperatures in Calgary on May 18
Rank Temperature Year
1 2.2 °C 1903
2 2.8 °C 1931
3 4.4 °C 1918
4 5.6 °C 1974
5 5.8 °C 1977
6 6.1 °C 1902
6 6.1 °C 1927
6 6.1 °C 1945
9 6.7 °C 2019
9 6.7 °C 1896
What's the most it has ever rained in Calgary on 5/18?
For the date of May 18, the most precipitation ever recorded in Calgary history is 6.50 cm which happened in 1902.
All-Time Most Precipitation in Calgary on May 18
Rank Precipitation Year
1 6.50 cm 1902
2 3.10 cm 1899
3 2.77 cm 1974
4 1.91 cm 1903
5 1.78 cm 1893
6 1.55 cm 1896
7 1.24 cm 1979
8 1.22 cm 1924
9 0.97 cm 1909
10 0.71 cm 1910
All-Time Most Snow in Calgary on May 18
Rank Precipitation Year
1 19.1 cm 1903
2 9.7 cm 1909
3 6.6 cm 1974
4 6.1 cm 1888
5 4.8 cm 1977
6 4.6 cm 1918
7 3.0 cm 1979
8 1.0 cm 1997
9 0.5 cm 1975
10 0.4 cm 2009
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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