Ottawa August 11 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of August 11.
August 11 All-Time Records
1889–2024
Highest temperature 37.2 °C 1944
Lowest temperature 7.2 °C 1972
Lowest daily high 15.6 °C 1954
Highest daily low 22.5 °C 2021
Most precipitation 2.97 cm 1892
Most snow none -
August 11 Average Weather
1991–2020 1
Average high 26.1 °C
Average low 15.1 °C
Chance precipitation 37.0%
Chance snow 0%
Ottawa August 11 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 23.0 15.0 0.00 0.0
2022 25.0 16.0 0.00 0.0
2021 31.5 22.5 0.00 0.0
2020 31.5 18.5 1.32 0.0
2019 28.0 11.5 0.00 0.0
2018 27.5 13.0 0.00 0.0
2017 27.0 15.0 0.34 0.0
2016 34.0 20.5 0.00 0.0
2015 24.6 18.3 0.36 0.0
2014 29.5 13.5 0.00 0.0
2013 25.3 11.4 0.00 0.0
2012 25.9 17.4 0.12 0.0
2011 21.4 15.4 0.00 0.0
2010 28.2 16.7 0.00 0.0
2009 27.5 17.6 1.12 0.0
2008 23.8 14.0 0.84 0.0
2007 29.4 13.6 0.00 0.0
2006 21.0 11.0 0.00 0.0
2005 28.2 17.7 0.00 0.0
2004 24.9 16.5 0.03 0.0
2003 27.8 20.3 0.14 0.0
2002 32.7 14.2 0.00 0.0
2001 27.2 13.5 0.00 0.0
2000 21.4 15.1 0.43 0.0
1999 22.6 14.0 0.00 0.0
1998 26.3 19.3 0.00 0.0
1997 21.3 18.7 0.02 0.0
1996 21.7 8.0 0.00 0.0
1995 27.8 16.8 0.14 0.0
1994 23.6 11.2 0.00 0.0
1993 27.3 19.7 0.26 0.0
1992 20.3 16.9 0.00 0.0
1991 25.5 16.4 0.00 0.0
1990 27.4 15.8 0.02 0.0
1989 28.8 14.1 0.00 0.0
1988 27.9 16.7 0.00 0.0
1987 23.3 10.7 0.00 0.0
1986 21.0 16.6 0.00 0.0
1985 27.6 16.8 0.00 0.0
1984 26.4 16.8 2.22 0.0
1983 22.5 10.5 0.00 0.0
1982 20.0 12.0 0.00 0.0
1981 24.0 15.5 0.42 0.0
1980 26.0 11.5 0.52 0.0
1979 19.5 12.5 0.00 0.0
1978 27.0 11.0 0.00 0.0
1977 24.0 14.5 0.14 0.0
1976 28.9 15.0 0.00 0.0
1975 27.8 17.2 0.00 0.0
1974 26.7 12.2 0.00 0.0
1973 29.4 20.0 0.00 0.0
1972 22.2 7.2 0.00 0.0
1971 25.6 19.4 0.20 0.0
1970 31.1 17.8 0.10 0.0
1969 23.9 12.8 0.00 0.0
1968 19.4 7.8 0.00 0.0
1967 20.6 13.9 0.00 0.0
1966 17.2 15.6 1.17 0.0
1965 22.2 10.0 0.00 0.0
1964 27.2 12.2 2.54 0.0
1963 21.7 13.3 0.28 0.0
1962 22.2 13.9 0.00 0.0
1961 28.3 21.1 1.30 0.0
1960 27.2 8.3 0.00 0.0
1959 27.2 18.3 0.13 0.0
1958 27.2 10.0 0.00 0.0
1957 27.2 13.9 0.00 0.0
1956 27.2 15.6 0.33 0.0
1955 26.7 16.7 0.00 0.0
1954 15.6 12.8 0.13 0.0
1953 26.7 16.1 0.00 0.0
1952 25.6 16.7 0.00 0.0
1951 27.2 10.6 0.00 0.0
1950 19.4 10.6 0.00 0.0
1949 27.2 20.0 0.00 0.0
1948 24.4 8.3 1.68 0.0
1947 30.6 15.0 0.00 0.0
1946 20.6 14.4 0.00 0.0
1945 30.6 12.8 0.00 0.0
1944 37.2 17.2 0.00 0.0
1943 27.2 15.6 0.00 0.0
1942 22.8 15.6 0.23 0.0
1941 26.1 7.2 1.30 0.0
1940 31.1 16.7 0.00 0.0
1939 27.2 10.6 0.00 0.0
1938 22.8 15.6 0.00 0.0
1937 23.9 20.6 0.94 0.0
1936 25.6 10.0 0.00 0.0
1935 29.4 18.3 0.15 0.0
1934 24.4 10.0 0.00 0.0
1933 26.1 13.9 0.08 0.0
1932 22.8 10.6 0.66 0.0
1931 24.4 12.2 0.00 0.0
1930 20.0 7.8 0.00 0.0
1929 28.3 16.7 0.00 0.0
1928 20.6 13.3 0.64 0.0
1927 24.4 7.2 0.00 0.0
1926 26.7 16.7 0.03 0.0
1925 27.2 15.0 0.00 0.0
1924 22.2 10.0 0.00 0.0
1923 28.3 14.4 0.00 0.0
1922 26.7 10.6 0.00 0.0
1921 25.6 17.2 0.30 0.0
1920 26.7 19.4 0.00 0.0
1919 27.8 10.0 0.00 0.0
1918 28.9 18.3 0.08 0.0
1917 27.2 12.8 0.00 0.0
1916 26.7 13.3 0.56 0.0
1915 30.0 15.6 0.00 0.0
1914 25.6 16.7 0.20 0.0
1913 23.9 8.9 0.00 0.0
1912 26.7 16.7 0.05 0.0
1911 24.4 13.3 0.46 0.0
1910 24.4 15.0 0.38 0.0
1909 26.1 10.6 0.00 0.0
1908 28.3 14.4 0.00 0.0
1907 33.9 12.2 0.00 0.0
1906 30.0 16.7 0.00 0.0
1905 29.4 17.8 0.00 0.0
1904 21.1 16.1 0.30 0.0
1903 25.6 12.2 0.30 0.0
1902 23.9 17.8 0.43 0.0
1901 22.2 13.9 0.30 0.0
1900 28.9 18.9 0.13 0.0
1899 24.4 13.3 0.00 0.0
1898 29.4 13.9 0.00 0.0
1897 21.7 16.7 2.74 0.0
1896 33.3 21.7 0.00 0.0
1895 27.2 12.8 1.88 0.0
1894 23.9 9.4 0.00 0.0
1893 32.8 17.2 0.00 0.0
1892 22.8 17.8 2.97 0.0
1891 32.2 15.6 1.07 0.0
1890 23.3 11.1 0.00 0.0
What's the all-time high for Ottawa on 8/11?
For the date of Aug 11, the highest temperature ever reached in Ottawa history is 37.2 °C which happened in 1944.
Highest Temperatures in Ottawa on August 11
Rank Temperature Year
1 37.2 °C 1944
2 34.0 °C 2016
3 33.9 °C 1907
4 33.3 °C 1896
5 32.8 °C 1893
6 32.7 °C 2002
7 32.2 °C 1891
8 31.5 °C 2021
8 31.5 °C 2020
10 31.1 °C 1970
10 31.1 °C 1940
What's the all-time low for Ottawa on 8/11?
For the date of Aug 11, the lowest temperature ever reached in Ottawa history is 7.2 °C which has happened 3 times, most recently in 1972.
Lowest Temperatures in Ottawa on August 11
Rank Temperature Year
1 7.2 °C 1972
1 7.2 °C 1941
1 7.2 °C 1927
4 7.8 °C 1930
4 7.8 °C 1968
6 8.0 °C 1996
7 8.3 °C 1960
7 8.3 °C 1948
9 8.9 °C 1913
10 9.4 °C 1894
Lowest High Temperatures in Ottawa on August 11
Rank Temperature Year
1 15.6 °C 1954
2 17.2 °C 1966
3 19.4 °C 1968
3 19.4 °C 1950
5 19.5 °C 1979
6 20.0 °C 1982
6 20.0 °C 1930
8 20.3 °C 1992
9 20.6 °C 1967
9 20.6 °C 1946
9 20.6 °C 1928
What's the most it has ever rained in Ottawa on 8/11?
For the date of Aug 11, the most precipitation ever recorded in Ottawa history is 2.97 cm which happened in 1892.
All-Time Most Precipitation in Ottawa on August 11
Rank Precipitation Year
1 2.97 cm 1892
2 2.74 cm 1897
3 2.54 cm 1964
4 2.22 cm 1984
5 1.88 cm 1895
6 1.68 cm 1948
7 1.32 cm 2020
8 1.30 cm 1941
8 1.30 cm 1961
10 1.17 cm 1966
Weather Station Details
Years Station Coordinates
1889–2024 Ottawa CDA location