Ottawa May 23 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of May 23.
May 23 All-Time Records
1889–2024
Highest temperature 32.2 °C 1975
Lowest temperature -1.1 °C 1935
Lowest daily high 6.1 °C 1931
Highest daily low 18.9 °C 1975
Most precipitation 4.36 cm 1977
Most snow none -
May 23 Average Weather
1991–2020 1
Average high 20.5 °C
Average low 9.5 °C
Chance precipitation 44.0%
Chance snow 0.2%
Ottawa May 23 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 24.0 4.0 0.72 0.0
2022 16.0 7.0 0.00 0.0
2021 19.0 13.0 0.00 0.0
2020 25.0 14.0 0.00 0.0
2019 20.5 10.0 1.32 0.0
2018 24.5 9.5 0.00 0.0
2017 21.0 7.0 0.00 0.0
2016 26.5 9.5 0.00 0.0
2015 17.5 0.5 0.00 0.0
2014 20.2 12.2 0.64 0.0
2013 20.5 14.9 0.50 0.0
2012 23.5 13.5 0.00 0.0
2011 25.9 15.7 0.12 0.0
2010 26.8 13.5 0.00 0.0
2009 21.9 5.4 0.00 0.0
2008 19.2 7.2 0.05 0.0
2007 27.2 8.1 0.00 0.0
2006 16.5 6.3 0.00 0.0
2005 12.1 7.7 0.68 0.0
2004 21.0 12.9 1.28 0.0
2003 21.3 7.7 0.00 0.0
2002 22.6 5.0 0.04 0.0
2001 15.7 12.6 0.65 0.0
2000 21.4 13.0 0.73 0.0
1999 23.2 11.1 0.00 0.0
1998 23.7 7.0 0.00 0.0
1997 17.8 5.7 0.00 0.0
1996 18.9 10.3 0.00 0.0
1995 19.8 8.3 0.60 0.0
1994 22.0 14.2 0.00 0.0
1993 21.0 3.0 1.35 0.0
1992 29.7 12.9 0.56 0.0
1991 28.1 14.1 0.00 0.0
1990 14.9 6.8 0.00 0.0
1989 23.7 6.3 0.00 0.0
1988 22.0 14.0 0.00 0.0
1987 9.1 7.6 0.86 0.0
1986 17.0 10.9 0.50 0.0
1985 23.7 5.8 0.02 0.0
1984 17.7 14.6 0.65 0.0
1983 22.0 14.0 0.00 0.0
1982 15.5 9.5 0.70 0.0
1981 23.5 9.0 0.00 0.0
1980 27.0 12.5 0.00 0.0
1979 15.0 8.0 0.00 0.0
1978 26.5 7.5 0.00 0.0
1977 31.0 14.0 4.36 0.0
1976 15.6 5.0 0.00 0.0
1975 32.2 18.9 0.00 0.0
1974 15.0 5.6 0.38 0.0
1973 20.6 6.1 0.00 0.0
1972 29.4 7.2 0.00 0.0
1971 14.4 2.2 0.00 0.0
1970 20.0 4.4 0.00 0.0
1969 17.2 4.4 0.00 0.0
1968 20.0 4.4 0.00 0.0
1967 16.1 -0.6 0.00 0.0
1966 25.6 8.3 0.00 0.0
1965 17.8 7.2 0.00 0.0
1964 31.7 15.0 0.00 0.0
1963 10.0 3.3 0.00 0.0
1962 21.7 5.6 0.97 0.0
1961 15.6 6.1 0.00 0.0
1960 15.0 11.7 0.46 0.0
1959 10.0 5.6 0.76 0.0
1958 13.9 4.4 0.00 0.0
1957 23.9 12.8 0.36 0.0
1956 8.9 2.2 0.00 0.0
1955 27.8 15.6 1.32 0.0
1954 22.8 10.0 0.00 0.0
1953 16.7 7.2 0.00 0.0
1952 23.9 5.0 0.00 0.0
1951 25.6 10.0 0.00 0.0
1950 25.6 12.8 0.00 0.0
1949 21.1 11.1 0.00 0.0
1948 14.4 6.7 0.00 0.0
1947 23.3 5.6 0.71 0.0
1946 23.9 8.9 0.00 0.0
1945 12.2 5.0 0.00 0.0
1944 26.7 8.9 0.00 0.0
1943 23.9 7.2 0.00 0.0
1942 18.9 13.9 0.05 0.0
1941 18.3 15.6 0.00 0.0
1940 21.1 14.4 0.43 0.0
1939 13.3 5.6 3.38 0.0
1938 20.6 5.6 1.88 0.0
1937 20.0 12.8 0.00 0.0
1936 26.7 4.4 0.00 0.0
1935 14.4 -1.1 0.00 0.0
1934 16.7 3.9 0.00 0.0
1933 23.9 7.2 0.00 0.0
1932 17.8 4.4 0.00 0.0
1931 6.1 5.6 1.22 0.0
1930 29.4 12.2 0.00 0.0
1929 19.4 3.9 0.00 0.0
1928 18.3 7.2 0.38 0.0
1927 20.0 10.0 0.89 0.0
1926 19.4 3.3 0.00 0.0
1925 15.6 -0.6 0.94 0.0
1924 18.3 3.3 0.00 0.0
1923 16.7 2.2 0.00 0.0
1922 25.0 8.9 0.00 0.0
1921 22.2 8.9 0.00 0.0
1920 25.0 10.0 0.00 0.0
1919 21.7 12.2 0.46 0.0
1918 22.2 13.9 0.00 0.0
1917 10.6 7.2 1.60 0.0
1916 17.8 11.1 0.66 0.0
1915 20.6 8.3 0.00 0.0
1914 18.3 8.3 0.00 0.0
1913 13.9 10.0 0.00 0.0
1912 26.7 9.4 0.08 0.0
1911 30.6 18.3 1.40 0.0
1910 21.1 13.9 0.08 0.0
1909 19.4 9.4 0.13 0.0
1908 28.9 15.0 0.00 0.0
1907 17.8 1.7 0.00 0.0
1906 26.7 11.1 0.03 0.0
1905 16.7 0.6 0.00 0.0
1904 21.1 13.3 0.69 0.0
1903 16.7 4.4 0.00 0.0
1902 30.0 16.7 0.36 0.0
1901 23.3 15.0 0.38 0.0
1900 21.7 6.7 0.00 0.0
1899 n/a n/a n/a n/a
1898 23.3 14.4 0.51 0.0
1897 16.1 6.7 1.47 0.0
1896 18.9 6.7 0.00 0.0
1895 21.1 5.0 0.00 0.0
1894 20.0 11.7 0.00 0.0
1893 28.9 13.3 0.56 0.0
1892 8.9 6.1 0.20 0.0
1891 17.8 0.0 0.00 0.0
1890 15.6 9.4 0.10 0.0
What's the all-time high for Ottawa on 5/23?
For the date of May 23, the highest temperature ever reached in Ottawa history is 32.2 °C which happened in 1975.
Highest Temperatures in Ottawa on May 23
Rank Temperature Year
1 32.2 °C 1975
2 31.7 °C 1964
3 31.0 °C 1977
4 30.6 °C 1911
5 30.0 °C 1902
6 29.7 °C 1992
7 29.4 °C 1972
7 29.4 °C 1930
9 28.9 °C 1908
9 28.9 °C 1893
What's the all-time low for Ottawa on 5/23?
For the date of May 23, the lowest temperature ever reached in Ottawa history is -1.1 °C which happened in 1935.
Lowest Temperatures in Ottawa on May 23
Rank Temperature Year
1 -1.1 °C 1935
2 -0.6 °C 1925
2 -0.6 °C 1967
4 0.0 °C 1891
5 0.5 °C 2015
6 0.6 °C 1905
7 1.7 °C 1907
8 2.2 °C 1971
8 2.2 °C 1956
8 2.2 °C 1923
Lowest High Temperatures in Ottawa on May 23
Rank Temperature Year
1 6.1 °C 1931
2 8.9 °C 1892
2 8.9 °C 1956
4 9.1 °C 1987
5 10.0 °C 1963
5 10.0 °C 1959
7 10.6 °C 1917
8 12.1 °C 2005
9 12.2 °C 1945
10 13.3 °C 1939
What's the most it has ever rained in Ottawa on 5/23?
For the date of May 23, the most precipitation ever recorded in Ottawa history is 4.36 cm which happened in 1977.
All-Time Most Precipitation in Ottawa on May 23
Rank Precipitation Year
1 4.36 cm 1977
2 3.38 cm 1939
3 1.88 cm 1938
4 1.60 cm 1917
5 1.47 cm 1897
6 1.40 cm 1911
7 1.35 cm 1993
8 1.32 cm 2019
8 1.32 cm 1955
10 1.28 cm 2004
Weather Station Details
Years Station Coordinates
1889–2024 Ottawa CDA location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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