Ottawa September 26 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of September 26.
September 26 All-Time Records
1889–2024
Highest temperature 30.5 °C 2017
Lowest temperature -2.8 °C 1943
Lowest daily high 8.9 °C 1957
Highest daily low 20.6 °C 2007
Most precipitation 4.47 cm 1899
Most snow none -
September 26 Average Weather
1991–2020 1
Average high 18.8 °C
Average low 8.5 °C
Chance precipitation 43.3%
Chance snow 0.1%
Ottawa September 26 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 20.0 10.0 0.00 0.0
2022 19.0 11.5 0.40 0.0
2021 19.0 9.0 0.04 0.0
2020 26.0 8.0 0.00 0.0
2019 20.0 13.5 0.36 0.0
2018 24.0 15.0 0.70 0.0
2017 30.5 17.0 0.00 0.0
2016 17.0 3.5 0.12 0.0
2015 19.0 3.0 0.00 0.0
2014 24.3 9.8 0.00 0.0
2013 19.2 7.3 0.00 0.0
2012 20.7 12.4 0.00 0.0
2011 26.3 9.5 0.00 0.0
2010 12.4 8.1 0.02 0.0
2009 19.4 2.5 1.94 0.0
2008 21.1 9.0 0.40 0.0
2007 26.8 20.6 0.20 0.0
2006 16.0 8.4 0.00 0.0
2005 21.7 16.7 1.86 0.0
2004 22.9 8.1 0.00 0.0
2003 20.4 4.0 0.00 0.0
2002 25.0 5.3 0.00 0.0
2001 15.3 7.5 0.00 0.0
2000 16.9 1.7 0.00 0.0
1999 19.2 3.8 0.00 0.0
1998 23.1 10.0 3.70 0.0
1997 13.7 8.4 0.02 0.0
1996 18.0 1.7 0.04 0.0
1995 18.0 6.4 0.71 0.0
1994 19.7 16.0 1.11 0.0
1993 16.0 10.7 0.34 0.0
1992 15.4 4.7 0.20 0.0
1991 15.8 6.9 1.00 0.0
1990 16.7 11.6 0.03 0.0
1989 15.5 5.1 0.28 0.0
1988 15.9 7.8 0.00 0.0
1987 17.1 4.7 0.00 0.0
1986 18.0 11.6 0.00 0.0
1985 24.0 4.1 1.52 0.0
1984 10.4 6.5 0.00 0.0
1983 18.5 10.5 0.00 0.0
1982 18.0 10.0 1.20 0.0
1981 18.5 7.5 1.18 0.0
1980 14.0 7.0 0.12 0.0
1979 19.0 8.5 0.00 0.0
1978 14.5 -1.0 0.02 0.0
1977 18.5 9.5 2.52 0.0
1976 11.1 4.4 0.79 0.0
1975 13.3 9.4 0.66 0.0
1974 15.0 7.8 0.00 0.0
1973 21.7 10.0 0.00 0.0
1972 22.2 18.9 0.10 0.0
1971 18.9 5.6 0.00 0.0
1970 24.4 11.7 2.08 0.0
1969 15.6 10.6 0.10 0.0
1968 17.8 10.6 0.00 0.0
1967 21.7 6.1 0.00 0.0
1966 12.8 1.7 0.00 0.0
1965 14.4 3.3 0.23 0.0
1964 18.3 2.8 0.08 0.0
1963 24.4 7.2 0.00 0.0
1962 11.7 11.1 0.10 0.0
1961 21.1 16.1 0.00 0.0
1960 18.3 14.4 0.00 0.0
1959 23.3 5.0 0.00 0.0
1958 19.4 12.2 0.00 0.0
1957 8.9 5.0 0.00 0.0
1956 14.4 1.7 0.00 0.0
1955 17.8 0.6 0.00 0.0
1954 13.3 6.7 0.61 0.0
1953 19.4 14.4 0.28 0.0
1952 12.8 10.0 0.00 0.0
1951 11.7 1.1 0.00 0.0
1950 12.8 -0.6 0.00 0.0
1949 17.8 3.3 0.13 0.0
1948 23.9 6.1 0.00 0.0
1947 10.6 -1.1 0.00 0.0
1946 20.0 4.4 0.00 0.0
1945 n/a n/a 0.00 0.0
1944 13.3 10.6 0.00 0.0
1943 12.8 -2.8 0.15 0.0
1942 20.6 3.3 2.41 0.0
1941 15.0 9.4 0.00 0.0
1940 12.8 0.0 0.00 0.0
1939 11.1 3.9 0.00 0.0
1938 21.1 2.8 0.41 0.0
1937 11.7 7.8 0.00 0.0
1936 17.8 0.0 0.00 0.0
1935 23.9 13.3 1.35 0.0
1934 28.3 13.9 0.00 0.0
1933 29.4 13.3 0.08 0.0
1932 20.6 3.9 0.00 0.0
1931 9.4 8.3 1.22 0.0
1930 23.9 16.1 0.00 0.0
1929 17.2 12.2 0.00 0.0
1928 9.4 3.3 1.12 0.0
1927 23.9 7.8 0.10 0.0
1926 11.7 2.2 0.15 0.0
1925 17.2 -1.7 0.00 0.0
1924 20.6 3.3 0.00 0.0
1923 25.0 11.7 0.00 0.0
1922 15.6 -1.1 0.00 0.0
1921 18.3 6.7 0.00 0.0
1920 30.0 14.4 0.00 0.0
1919 12.8 4.4 0.00 0.0
1918 10.6 7.8 0.64 0.0
1917 26.7 6.7 0.00 0.0
1916 20.6 2.2 0.00 0.0
1915 20.0 6.1 1.70 0.0
1914 14.4 1.1 0.00 0.0
1913 22.2 11.7 0.53 0.0
1912 18.9 10.0 0.13 0.0
1911 13.9 3.9 0.00 0.0
1910 17.8 10.0 0.00 0.0
1909 16.1 6.1 0.13 0.0
1908 30.0 12.2 0.00 0.0
1907 13.3 -1.1 0.08 0.0
1906 23.3 4.4 0.00 0.0
1905 10.6 0.0 0.00 0.0
1904 16.7 7.8 0.51 0.0
1903 23.9 6.7 0.00 0.0
1902 12.8 7.8 0.05 0.0
1901 18.3 1.1 0.00 0.0
1900 28.9 14.4 0.76 0.0
1899 14.4 5.0 4.47 0.0
1898 21.7 7.2 0.10 0.0
1897 18.3 12.2 0.38 0.0
1896 20.6 12.8 0.23 0.0
1895 22.2 10.6 0.86 0.0
1894 14.4 -1.1 0.00 0.0
1893 12.2 1.7 0.00 0.0
1892 20.6 9.4 0.13 0.0
1891 24.4 14.4 0.00 0.0
1890 11.1 3.9 0.25 0.0
What's the all-time high for Ottawa on 9/26?
For the date of Sep 26, the highest temperature ever reached in Ottawa history is 30.5 °C which happened in 2017.
Highest Temperatures in Ottawa on September 26
Rank Temperature Year
1 30.5 °C 2017
2 30.0 °C 1920
2 30.0 °C 1908
4 29.4 °C 1933
5 28.9 °C 1900
6 28.3 °C 1934
7 26.8 °C 2007
8 26.7 °C 1917
9 26.3 °C 2011
10 26.0 °C 2020
What's the all-time low for Ottawa on 9/26?
For the date of Sep 26, the lowest temperature ever reached in Ottawa history is -2.8 °C which happened in 1943.
Lowest Temperatures in Ottawa on September 26
Rank Temperature Year
1 -2.8 °C 1943
2 -1.7 °C 1925
3 -1.1 °C 1894
3 -1.1 °C 1907
3 -1.1 °C 1922
3 -1.1 °C 1947
7 -1.0 °C 1978
8 -0.6 °C 1950
9 0.0 °C 1940
9 0.0 °C 1936
9 0.0 °C 1905
Lowest High Temperatures in Ottawa on September 26
Rank Temperature Year
1 8.9 °C 1957
2 9.4 °C 1928
2 9.4 °C 1931
4 10.4 °C 1984
5 10.6 °C 1905
5 10.6 °C 1918
5 10.6 °C 1947
8 11.1 °C 1890
8 11.1 °C 1976
8 11.1 °C 1939
What's the most it has ever rained in Ottawa on 9/26?
For the date of Sep 26, the most precipitation ever recorded in Ottawa history is 4.47 cm which happened in 1899.
All-Time Most Precipitation in Ottawa on September 26
Rank Precipitation Year
1 4.47 cm 1899
2 3.70 cm 1998
3 2.52 cm 1977
4 2.41 cm 1942
5 2.08 cm 1970
6 1.94 cm 2009
7 1.86 cm 2005
8 1.70 cm 1915
9 1.52 cm 1985
10 1.35 cm 1935
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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