Ottawa August 23 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of August 23.
August 23 All-Time Records
1889–2024
Highest temperature 33.3 °C 1918
Lowest temperature 4.4 °C 1957
Lowest daily high 15.0 °C 1971
Highest daily low 22.0 °C 2021
Most precipitation 9.04 cm 1943
Most snow none -
August 23 Average Weather
1991–2020 1
Average high 25.1 °C
Average low 14.1 °C
Chance precipitation 36.0%
Chance snow 0%
Ottawa August 23 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 26.5 14.5 0.00 0.0
2022 25.0 19.0 0.10 0.0
2021 29.0 22.0 0.00 0.0
2020 28.0 19.0 2.64 0.0
2019 23.0 15.0 0.00 0.0
2018 25.5 12.0 0.00 0.0
2017 22.5 15.0 0.00 0.0
2016 27.5 10.0 0.00 0.0
2015 26.8 12.2 0.00 0.0
2014 25.5 16.5 0.00 0.0
2013 22.0 14.0 0.00 0.0
2012 27.5 14.4 0.00 0.0
2011 24.4 10.8 0.00 0.0
2010 23.7 15.8 0.16 0.0
2009 25.5 16.8 0.00 0.0
2008 28.9 16.1 0.00 0.0
2007 25.2 17.1 1.12 0.0
2006 21.0 10.7 0.00 0.0
2005 20.6 13.1 0.00 0.0
2004 21.6 14.0 0.00 0.0
2003 22.5 14.3 0.00 0.0
2002 23.2 11.6 0.00 0.0
2001 26.0 16.2 0.08 0.0
2000 18.1 13.8 0.58 0.0
1999 29.0 15.6 0.00 0.0
1998 22.3 13.0 1.52 0.0
1997 21.7 13.6 0.10 0.0
1996 27.6 20.4 0.00 0.0
1995 24.6 11.1 0.02 0.0
1994 21.6 9.3 0.00 0.0
1993 25.9 9.1 0.55 0.0
1992 27.7 13.3 0.00 0.0
1991 19.9 14.6 0.00 0.0
1990 27.6 14.3 0.00 0.0
1989 24.4 16.5 0.00 0.0
1988 21.5 9.1 0.76 0.0
1987 19.7 10.9 0.00 0.0
1986 19.8 12.1 0.78 0.0
1985 24.5 12.8 0.00 0.0
1984 17.6 15.8 2.38 0.0
1983 24.5 13.0 0.00 0.0
1982 23.0 11.5 0.00 0.0
1981 27.0 15.5 0.38 0.0
1980 26.5 16.0 0.00 0.0
1979 25.0 12.5 1.80 0.0
1978 22.0 17.5 2.52 0.0
1977 22.0 12.0 0.20 0.0
1976 23.9 18.9 0.00 0.0
1975 25.6 7.2 0.00 0.0
1974 30.6 16.1 0.08 0.0
1973 21.1 7.2 0.00 0.0
1972 23.9 18.3 0.56 0.0
1971 15.0 10.0 0.00 0.0
1970 17.8 13.9 0.00 0.0
1969 30.0 13.9 0.00 0.0
1968 23.9 8.9 0.00 0.0
1967 20.0 9.4 0.00 0.0
1966 25.6 15.0 0.00 0.0
1965 22.8 12.2 0.00 0.0
1964 20.0 13.9 0.00 0.0
1963 16.7 13.9 0.99 0.0
1962 23.9 9.4 0.00 0.0
1961 23.9 10.0 0.00 0.0
1960 21.7 16.7 0.00 0.0
1959 24.4 9.4 1.80 0.0
1958 21.1 8.9 0.00 0.0
1957 26.7 4.4 0.00 0.0
1956 18.3 15.0 3.00 0.0
1955 22.2 12.8 0.00 0.0
1954 28.9 9.4 0.00 0.0
1953 28.9 12.8 0.08 0.0
1952 20.6 7.8 0.00 0.0
1951 22.2 10.0 0.00 0.0
1950 26.7 12.8 0.00 0.0
1949 31.7 10.0 0.41 0.0
1948 30.0 16.7 0.00 0.0
1947 32.2 16.7 0.00 0.0
1946 20.0 11.1 0.00 0.0
1945 21.7 5.6 0.00 0.0
1944 22.8 12.2 0.00 0.0
1943 29.4 15.6 9.04 0.0
1942 21.1 15.0 0.00 0.0
1941 20.6 12.2 0.00 0.0
1940 15.0 9.4 0.00 0.0
1939 27.2 11.1 0.00 0.0
1938 21.1 15.6 0.33 0.0
1937 23.3 10.0 0.00 0.0
1936 27.8 15.0 0.41 0.0
1935 20.6 8.3 0.00 0.0
1934 23.3 9.4 0.10 0.0
1933 28.3 18.3 0.53 0.0
1932 25.6 7.2 0.00 0.0
1931 28.3 8.9 0.00 0.0
1930 20.6 13.9 0.30 0.0
1929 22.8 15.6 0.71 0.0
1928 26.1 12.8 0.00 0.0
1927 26.7 15.6 0.05 0.0
1926 25.6 15.6 0.41 0.0
1925 27.8 8.3 0.00 0.0
1924 23.9 18.3 0.86 0.0
1923 16.7 6.7 0.00 0.0
1922 28.9 17.8 0.00 0.0
1921 25.6 9.4 0.00 0.0
1920 22.2 8.9 0.00 0.0
1919 27.8 12.2 0.00 0.0
1918 33.3 18.9 0.00 0.0
1917 26.1 16.7 0.00 0.0
1916 25.0 17.8 0.00 0.0
1915 23.3 17.2 0.18 0.0
1914 25.0 11.7 0.30 0.0
1913 17.2 13.9 0.18 0.0
1912 21.1 14.4 0.15 0.0
1911 24.4 15.6 0.00 0.0
1910 26.7 17.2 1.65 0.0
1909 26.1 14.4 0.41 0.0
1908 22.2 9.4 0.00 0.0
1907 28.9 6.1 0.00 0.0
1906 26.7 15.6 1.52 0.0
1905 26.1 11.1 0.00 0.0
1904 22.2 8.9 0.00 0.0
1903 21.7 7.8 0.00 0.0
1902 22.2 12.2 0.15 0.0
1901 29.4 19.4 0.10 0.0
1900 27.8 10.6 0.00 0.0
1899 26.1 16.7 0.03 0.0
1898 21.1 14.4 0.56 0.0
1897 17.8 6.1 0.00 0.0
1896 27.8 17.2 1.55 0.0
1895 21.1 7.8 0.00 0.0
1894 26.1 8.3 0.00 0.0
1893 27.8 11.7 0.00 0.0
1892 25.0 10.0 0.00 0.0
1891 20.6 13.9 0.33 0.0
1890 15.0 7.8 0.00 0.0
What's the all-time high for Ottawa on 8/23?
For the date of Aug 23, the highest temperature ever reached in Ottawa history is 33.3 °C which happened in 1918.
Highest Temperatures in Ottawa on August 23
Rank Temperature Year
1 33.3 °C 1918
2 32.2 °C 1947
3 31.7 °C 1949
4 30.6 °C 1974
5 30.0 °C 1948
5 30.0 °C 1969
7 29.4 °C 1943
7 29.4 °C 1901
9 29.0 °C 2021
9 29.0 °C 1999
What's the all-time low for Ottawa on 8/23?
For the date of Aug 23, the lowest temperature ever reached in Ottawa history is 4.4 °C which happened in 1957.
Lowest Temperatures in Ottawa on August 23
Rank Temperature Year
1 4.4 °C 1957
2 5.6 °C 1945
3 6.1 °C 1907
3 6.1 °C 1897
5 6.7 °C 1923
6 7.2 °C 1973
6 7.2 °C 1975
6 7.2 °C 1932
9 7.8 °C 1895
9 7.8 °C 1952
9 7.8 °C 1890
9 7.8 °C 1903
Lowest High Temperatures in Ottawa on August 23
Rank Temperature Year
1 15.0 °C 1940
1 15.0 °C 1971
1 15.0 °C 1890
4 16.7 °C 1963
4 16.7 °C 1923
6 17.2 °C 1913
7 17.6 °C 1984
8 17.8 °C 1970
8 17.8 °C 1897
10 18.1 °C 2000
What's the most it has ever rained in Ottawa on 8/23?
For the date of Aug 23, the most precipitation ever recorded in Ottawa history is 9.04 cm which happened in 1943.
All-Time Most Precipitation in Ottawa on August 23
Rank Precipitation Year
1 9.04 cm 1943
2 3.00 cm 1956
3 2.64 cm 2020
4 2.52 cm 1978
5 2.38 cm 1984
6 1.80 cm 1979
6 1.80 cm 1959
8 1.65 cm 1910
9 1.55 cm 1896
10 1.52 cm 1998
10 1.52 cm 1906
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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