Ottawa September 9 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of September 9.
September 9 All-Time Records
1889–2024
Highest temperature 35.3 °C 2002
Lowest temperature 1.7 °C 1956
Lowest daily high 12.2 °C 1919
Highest daily low 22.4 °C 2001
Most precipitation 10.86 cm 2004
Most snow none -
September 9 Average Weather
1991–2020 1
Average high 22.6 °C
Average low 11.7 °C
Chance precipitation 37.6%
Chance snow 0%
Ottawa September 9 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 23.5 10.5 0.00 0.0
2022 27.0 12.0 0.00 0.0
2021 23.5 11.5 0.00 0.0
2020 16.0 12.5 0.32 0.0
2019 17.5 4.0 0.00 0.0
2018 17.0 4.5 0.00 0.0
2017 18.5 10.5 0.00 0.0
2016 26.5 19.5 0.00 0.0
2015 24.6 21.5 0.04 0.0
2014 23.0 14.1 0.00 0.0
2013 21.6 5.1 0.62 0.0
2012 17.5 7.7 0.00 0.0
2011 27.0 12.4 0.00 0.0
2010 17.4 12.2 0.06 0.0
2009 23.2 10.6 0.00 0.0
2008 18.5 12.0 0.27 0.0
2007 19.0 11.0 0.00 0.0
2006 17.7 11.1 0.00 0.0
2005 21.0 10.2 0.00 0.0
2004 n/a 12.5 10.86 0.0
2003 20.4 8.8 0.00 0.0
2002 35.3 17.7 0.00 0.0
2001 32.8 22.4 0.00 0.0
2000 25.3 10.7 0.00 0.0
1999 27.3 15.9 1.64 0.0
1998 19.9 12.0 0.00 0.0
1997 24.1 7.8 0.00 0.0
1996 21.7 17.8 0.02 0.0
1995 19.7 3.5 0.00 0.0
1994 18.1 9.0 0.00 0.0
1993 20.4 10.0 0.90 0.0
1992 20.7 9.0 0.00 0.0
1991 22.9 10.8 0.26 0.0
1990 17.8 5.8 0.00 0.0
1989 27.3 17.9 0.14 0.0
1988 23.3 10.8 0.00 0.0
1987 23.2 17.3 0.02 0.0
1986 20.2 8.8 0.04 0.0
1985 19.0 15.6 0.16 0.0
1984 24.4 13.0 0.35 0.0
1983 28.5 11.5 0.24 0.0
1982 24.5 8.5 0.00 0.0
1981 14.0 7.0 1.34 0.0
1980 20.5 7.0 0.80 0.0
1979 15.5 2.0 0.00 0.0
1978 15.0 8.0 0.02 0.0
1977 24.5 11.0 0.00 0.0
1976 23.9 10.6 0.41 0.0
1975 15.6 8.3 0.00 0.0
1974 25.6 12.8 0.30 0.0
1973 16.7 8.9 0.00 0.0
1972 19.4 11.1 0.03 0.0
1971 22.8 15.6 0.00 0.0
1970 19.4 15.6 0.00 0.0
1969 20.0 13.3 0.00 0.0
1968 26.1 12.8 0.00 0.0
1967 25.6 16.1 0.13 0.0
1966 25.0 11.7 0.00 0.0
1965 22.8 7.2 1.96 0.0
1964 22.8 16.7 0.00 0.0
1963 21.7 14.4 0.00 0.0
1962 21.7 8.3 0.10 0.0
1961 28.9 12.2 0.00 0.0
1960 28.3 15.6 0.86 0.0
1959 28.9 18.9 0.00 0.0
1958 20.6 5.0 1.65 0.0
1957 19.4 5.6 0.00 0.0
1956 16.1 1.7 0.00 0.0
1955 20.6 2.8 0.05 0.0
1954 18.9 10.0 0.00 0.0
1953 18.9 5.6 0.00 0.0
1952 23.9 7.2 0.00 0.0
1951 23.9 7.2 0.00 0.0
1950 25.6 12.2 0.00 0.0
1949 17.8 8.9 0.00 0.0
1948 18.3 15.6 1.35 0.0
1947 28.9 11.7 0.00 0.0
1946 17.2 10.0 0.94 0.0
1945 28.3 19.4 0.00 0.0
1944 17.2 10.0 0.00 0.0
1943 18.3 8.3 0.10 0.0
1942 15.6 11.1 9.32 0.0
1941 16.7 8.9 0.00 0.0
1940 19.4 12.8 0.91 0.0
1939 17.8 8.9 0.00 0.0
1938 16.1 3.3 0.00 0.0
1937 25.6 7.2 1.09 0.0
1936 25.6 14.4 0.00 0.0
1935 16.7 4.4 0.00 0.0
1934 23.3 14.4 0.00 0.0
1933 22.2 17.2 0.23 0.0
1932 18.9 10.0 0.00 0.0
1931 32.8 11.7 0.00 0.0
1930 17.8 2.2 0.00 0.0
1929 24.4 11.7 0.00 0.0
1928 15.6 12.2 0.00 0.0
1927 23.3 2.2 0.00 0.0
1926 22.8 13.9 2.36 0.0
1925 21.1 2.8 0.00 0.0
1924 20.0 11.1 1.91 0.0
1923 20.6 11.1 0.86 0.0
1922 30.6 16.7 0.05 0.0
1921 26.1 11.1 0.00 0.0
1920 24.4 10.6 0.00 0.0
1919 12.2 9.4 1.45 0.0
1918 22.8 8.3 0.00 0.0
1917 12.8 8.3 0.30 0.0
1916 21.7 9.4 0.00 0.0
1915 29.4 16.7 0.38 0.0
1914 15.0 3.9 0.00 0.0
1913 16.7 4.4 0.00 0.0
1912 23.3 12.2 0.00 0.0
1911 21.1 12.2 0.00 0.0
1910 17.8 12.8 0.18 0.0
1909 17.2 11.1 0.00 0.0
1908 30.0 10.0 0.00 0.0
1907 22.2 11.1 0.13 0.0
1906 32.8 12.2 0.00 0.0
1905 25.6 8.3 0.00 0.0
1904 18.9 6.1 0.00 0.0
1903 20.6 6.7 0.00 0.0
1902 25.6 12.2 0.74 0.0
1901 21.7 6.1 0.00 0.0
1900 23.3 14.4 0.00 0.0
1899 21.1 7.2 0.00 0.0
1898 20.0 9.4 0.05 0.0
1897 33.3 16.1 0.00 0.0
1896 24.4 9.4 0.00 0.0
1895 22.8 14.4 0.08 0.0
1894 26.7 16.1 0.00 0.0
1893 22.2 8.3 0.00 0.0
1892 22.2 3.9 0.00 0.0
1891 21.7 5.6 0.00 0.0
1890 21.1 10.6 0.00 0.0
What's the all-time high for Ottawa on 9/9?
For the date of Sep 9, the highest temperature ever reached in Ottawa history is 35.3 °C which happened in 2002.
Highest Temperatures in Ottawa on September 9
Rank Temperature Year
1 35.3 °C 2002
2 33.3 °C 1897
3 32.8 °C 1931
3 32.8 °C 1906
3 32.8 °C 2001
6 30.6 °C 1922
7 30.0 °C 1908
8 29.4 °C 1915
9 28.9 °C 1959
9 28.9 °C 1961
9 28.9 °C 1947
What's the all-time low for Ottawa on 9/9?
For the date of Sep 9, the lowest temperature ever reached in Ottawa history is 1.7 °C which happened in 1956.
Lowest Temperatures in Ottawa on September 9
Rank Temperature Year
1 1.7 °C 1956
2 2.0 °C 1979
3 2.2 °C 1927
3 2.2 °C 1930
5 2.8 °C 1955
5 2.8 °C 1925
7 3.3 °C 1938
8 3.5 °C 1995
9 3.9 °C 1892
9 3.9 °C 1914
Lowest High Temperatures in Ottawa on September 9
Rank Temperature Year
1 12.2 °C 1919
2 12.8 °C 1917
3 14.0 °C 1981
4 15.0 °C 1978
4 15.0 °C 1914
6 15.5 °C 1979
7 15.6 °C 1928
7 15.6 °C 1942
7 15.6 °C 1975
10 16.0 °C 2020
What's the most it has ever rained in Ottawa on 9/9?
For the date of Sep 9, the most precipitation ever recorded in Ottawa history is 10.86 cm which happened in 2004.
All-Time Most Precipitation in Ottawa on September 9
Rank Precipitation Year
1 10.86 cm 2004
2 9.32 cm 1942
3 2.36 cm 1926
4 1.96 cm 1965
5 1.91 cm 1924
6 1.65 cm 1958
7 1.64 cm 1999
8 1.45 cm 1919
9 1.35 cm 1948
10 1.34 cm 1981
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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