Ottawa May 11 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of May 11.
May 11 All-Time Records
1889–2024
Highest temperature 30.6 °C 1911
Lowest temperature -3.9 °C 1923
Lowest daily high 6.1 °C 1967
Highest daily low 15.0 °C 1936
Most precipitation 3.05 cm 1943
Most snow none -
May 11 Average Weather
1991–2020 1
Average high 18.5 °C
Average low 7.1 °C
Chance precipitation 41.2%
Chance snow 0.4%
Ottawa May 11 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 26.5 11.0 0.00 0.0
2022 29.0 6.0 0.00 0.0
2021 12.0 4.0 0.20 0.0
2020 n/a n/a n/a n/a
2019 14.0 5.0 0.00 0.0
2018 12.0 1.0 0.00 0.0
2017 13.5 5.5 0.00 0.0
2016 22.5 4.0 0.00 0.0
2015 14.2 8.9 0.39 0.0
2014 23.9 8.0 0.00 0.0
2013 14.0 8.5 0.08 0.0
2012 19.3 6.4 0.00 0.0
2011 19.9 6.9 0.00 0.0
2010 16.7 -1.3 0.00 0.0
2009 15.3 1.5 0.00 0.0
2008 20.5 5.8 0.00 0.0
2007 21.5 13.5 0.00 0.0
2006 25.2 11.4 1.00 0.0
2005 23.4 14.3 0.00 0.0
2004 22.3 11.0 0.00 0.0
2003 16.8 7.4 1.70 0.0
2002 13.8 4.1 0.00 0.0
2001 26.3 10.7 0.08 0.0
2000 18.6 9.2 0.00 0.0
1999 15.5 2.4 0.00 0.0
1998 22.3 12.8 0.00 0.0
1997 17.8 5.3 0.50 0.0
1996 8.0 5.3 1.42 0.0
1995 13.3 9.8 1.48 0.0
1994 16.5 1.5 0.60 0.0
1993 25.8 12.8 0.00 0.0
1992 25.6 9.6 0.00 0.0
1991 25.6 9.3 0.00 0.0
1990 11.7 3.3 0.03 0.0
1989 12.5 6.5 0.64 0.0
1988 14.9 6.9 0.00 0.0
1987 18.0 5.3 1.10 0.0
1986 20.1 9.5 0.00 0.0
1985 20.9 11.9 0.00 0.0
1984 17.0 4.7 1.20 0.0
1983 10.5 3.0 0.00 0.0
1982 18.0 4.0 0.00 0.0
1981 15.0 7.5 1.88 0.0
1980 17.0 7.0 0.12 0.0
1979 23.0 13.5 0.00 0.0
1978 19.0 2.0 0.00 0.0
1977 22.0 5.5 0.00 0.0
1976 15.0 10.0 1.37 0.0
1975 24.4 5.6 0.00 0.0
1974 13.9 0.6 0.18 0.0
1973 17.8 11.1 0.46 0.0
1972 15.0 3.9 0.33 0.0
1971 25.0 10.6 0.00 0.0
1970 15.0 8.3 0.00 0.0
1969 7.2 0.6 0.61 0.0
1968 20.0 0.6 0.00 0.0
1967 6.1 -0.6 0.25 0.0
1966 11.1 -1.7 0.00 0.0
1965 18.3 11.7 0.00 0.0
1964 19.4 10.6 0.00 0.0
1963 8.3 -0.6 0.00 0.0
1962 16.7 2.2 0.00 0.0
1961 20.6 1.7 0.00 0.0
1960 19.4 7.8 0.36 0.0
1959 27.2 14.4 0.36 0.0
1958 12.2 3.3 0.53 0.0
1957 18.9 0.0 0.00 0.0
1956 16.7 -1.1 1.02 0.0
1955 18.9 6.7 0.00 0.0
1954 13.9 3.9 0.20 0.0
1953 18.9 7.2 0.00 0.0
1952 11.1 9.4 2.82 0.0
1951 12.2 1.7 1.07 0.0
1950 18.9 4.4 0.00 0.0
1949 12.8 0.6 0.00 0.0
1948 13.3 8.9 0.56 0.0
1947 20.6 0.6 0.00 0.0
1946 13.9 4.4 0.23 0.0
1945 12.2 0.0 0.00 0.0
1944 18.9 2.8 0.00 0.0
1943 13.3 7.2 3.05 0.0
1942 17.8 1.7 0.25 0.0
1941 15.0 0.6 0.00 0.0
1940 10.0 3.9 0.10 0.0
1939 12.8 4.4 0.00 0.0
1938 8.9 2.2 0.36 0.0
1937 21.1 0.0 0.00 0.0
1936 20.0 15.0 0.81 0.0
1935 13.9 5.6 0.00 0.0
1934 9.4 7.2 0.00 0.0
1933 21.1 3.9 0.00 0.0
1932 18.3 8.9 0.00 0.0
1931 10.0 6.7 0.00 0.0
1930 22.2 3.9 0.00 0.0
1929 18.9 1.1 0.00 0.0
1928 19.4 7.8 0.00 0.0
1927 20.6 11.1 1.27 0.0
1926 15.0 5.6 0.00 0.0
1925 21.1 9.4 0.41 0.0
1924 16.7 7.8 0.15 0.0
1923 8.9 -3.9 0.05 0.0
1922 19.4 10.6 0.00 0.0
1921 19.4 3.9 0.00 0.0
1920 16.7 1.1 0.00 0.0
1919 12.2 4.4 1.32 0.0
1918 12.2 -2.2 0.00 0.0
1917 11.7 3.3 0.38 0.0
1916 16.1 9.4 1.98 0.0
1915 18.3 1.1 0.00 0.0
1914 19.4 1.7 0.00 0.0
1913 13.9 -1.1 0.00 0.0
1912 26.1 7.2 0.00 0.0
1911 30.6 9.4 0.10 0.0
1910 11.1 2.2 0.03 0.0
1909 15.6 2.8 2.62 0.0
1908 21.7 6.1 0.00 0.0
1907 8.3 -0.6 0.00 0.0
1906 13.3 -1.7 0.00 0.0
1905 25.6 3.9 0.00 0.0
1904 18.9 6.7 0.00 0.0
1903 26.7 7.8 0.00 0.0
1902 13.9 -1.1 0.00 0.0
1901 19.4 13.3 1.22 0.0
1900 14.4 -3.3 0.00 0.0
1899 n/a n/a n/a n/a
1898 20.0 7.2 0.25 0.0
1897 22.8 7.8 0.00 0.0
1896 25.0 15.0 0.15 0.0
1895 28.9 14.4 0.00 0.0
1894 18.3 8.3 0.18 0.0
1893 28.3 7.8 0.00 0.0
1892 12.2 6.1 0.00 0.0
1891 17.2 5.6 0.00 0.0
1890 13.9 0.6 0.00 0.0
What's the all-time high for Ottawa on 5/11?
For the date of May 11, the highest temperature ever reached in Ottawa history is 30.6 °C which happened in 1911.
Highest Temperatures in Ottawa on May 11
Rank Temperature Year
1 30.6 °C 1911
2 29.0 °C 2022
3 28.9 °C 1895
4 28.3 °C 1893
5 27.2 °C 1959
6 26.7 °C 1903
7 26.5 °C 2023
8 26.3 °C 2001
9 26.1 °C 1912
10 25.8 °C 1993
What's the all-time low for Ottawa on 5/11?
For the date of May 11, the lowest temperature ever reached in Ottawa history is -3.9 °C which happened in 1923.
Lowest Temperatures in Ottawa on May 11
Rank Temperature Year
1 -3.9 °C 1923
2 -3.3 °C 1900
3 -2.2 °C 1918
4 -1.7 °C 1966
4 -1.7 °C 1906
6 -1.3 °C 2010
7 -1.1 °C 1956
7 -1.1 °C 1902
7 -1.1 °C 1913
10 -0.6 °C 1963
10 -0.6 °C 1907
10 -0.6 °C 1967
Lowest High Temperatures in Ottawa on May 11
Rank Temperature Year
1 6.1 °C 1967
2 7.2 °C 1969
3 8.0 °C 1996
4 8.3 °C 1963
4 8.3 °C 1907
6 8.9 °C 1923
6 8.9 °C 1938
8 9.4 °C 1934
9 10.0 °C 1940
9 10.0 °C 1931
What's the most it has ever rained in Ottawa on 5/11?
For the date of May 11, the most precipitation ever recorded in Ottawa history is 3.05 cm which happened in 1943.
All-Time Most Precipitation in Ottawa on May 11
Rank Precipitation Year
1 3.05 cm 1943
2 2.82 cm 1952
3 2.62 cm 1909
4 1.98 cm 1916
5 1.88 cm 1981
6 1.70 cm 2003
7 1.48 cm 1995
8 1.42 cm 1996
9 1.37 cm 1976
10 1.32 cm 1919
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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