Ottawa August 17 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of August 17.
August 17 All-Time Records
1889–2024
Highest temperature 36.1 °C 1913
Lowest temperature 5.0 °C 1979
Lowest daily high 18.2 °C 2000
Highest daily low 22.2 °C 1959
Most precipitation 2.38 cm 2017
Most snow none -
August 17 Average Weather
1991–2020 1
Average high 25.6 °C
Average low 14.7 °C
Chance precipitation 36.9%
Chance snow 0%
Ottawa August 17 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 27.0 16.0 0.84 0.0
2022 28.0 17.0 0.40 0.0
2021 23.5 14.0 0.00 0.0
2020 25.5 17.0 0.90 0.0
2019 24.0 17.0 0.30 0.0
2018 25.0 16.5 0.08 0.0
2017 25.5 13.0 2.38 0.0
2016 27.5 16.0 0.00 0.0
2015 31.8 18.7 0.00 0.0
2014 21.0 11.8 0.42 0.0
2013 25.6 9.5 0.00 0.0
2012 26.3 19.1 0.10 0.0
2011 27.8 10.0 0.00 0.0
2010 26.2 13.0 0.00 0.0
2009 32.8 18.9 0.10 0.0
2008 25.4 15.9 0.00 0.0
2007 23.6 8.5 0.10 0.0
2006 27.0 10.9 0.00 0.0
2005 23.5 16.0 0.00 0.0
2004 25.0 12.0 0.00 0.0
2003 25.1 15.1 0.00 0.0
2002 29.7 16.0 0.00 0.0
2001 29.5 18.2 0.64 0.0
2000 18.2 11.2 0.00 0.0
1999 27.8 13.8 0.00 0.0
1998 30.3 14.2 0.03 0.0
1997 21.2 12.3 0.00 0.0
1996 25.0 15.3 0.00 0.0
1995 31.3 18.2 0.00 0.0
1994 26.0 11.7 0.00 0.0
1993 29.0 16.2 0.00 0.0
1992 24.4 16.9 0.00 0.0
1991 30.9 16.0 0.76 0.0
1990 29.6 15.0 0.00 0.0
1989 21.1 12.6 0.00 0.0
1988 22.8 17.1 0.00 0.0
1987 32.8 21.3 0.10 0.0
1986 28.7 16.0 1.38 0.0
1985 25.8 11.5 0.00 0.0
1984 18.3 11.3 0.00 0.0
1983 25.5 16.0 0.14 0.0
1982 24.0 18.5 0.00 0.0
1981 22.0 10.5 0.00 0.0
1980 25.0 11.5 0.00 0.0
1979 23.0 5.0 0.16 0.0
1978 28.0 20.5 0.02 0.0
1977 21.5 13.5 0.02 0.0
1976 25.0 12.8 0.00 0.0
1975 27.8 16.1 0.13 0.0
1974 22.8 16.7 0.05 0.0
1973 29.4 16.1 0.00 0.0
1972 21.1 12.8 0.61 0.0
1971 28.3 14.4 0.00 0.0
1970 23.9 15.0 0.00 0.0
1969 28.9 20.6 0.30 0.0
1968 25.6 16.7 0.86 0.0
1967 30.0 15.6 0.00 0.0
1966 25.6 16.7 0.00 0.0
1965 28.3 14.4 0.30 0.0
1964 21.7 13.3 0.66 0.0
1963 18.9 11.7 0.25 0.0
1962 19.4 13.9 0.00 0.0
1961 22.8 6.7 0.00 0.0
1960 28.3 10.0 0.00 0.0
1959 28.3 22.2 0.18 0.0
1958 20.6 8.3 0.81 0.0
1957 23.3 7.2 0.00 0.0
1956 27.8 13.3 0.00 0.0
1955 30.0 18.9 0.00 0.0
1954 22.2 10.6 0.00 0.0
1953 20.0 11.1 0.00 0.0
1952 22.2 15.0 0.00 0.0
1951 18.9 12.8 0.00 0.0
1950 28.3 13.3 0.84 0.0
1949 27.2 10.6 0.05 0.0
1948 28.9 12.2 0.00 0.0
1947 27.2 15.6 0.00 0.0
1946 23.3 18.3 0.00 0.0
1945 25.6 11.1 0.00 0.0
1944 26.7 21.1 0.64 0.0
1943 18.3 12.8 0.00 0.0
1942 23.9 12.2 0.00 0.0
1941 20.0 9.4 0.00 0.0
1940 31.1 15.6 0.00 0.0
1939 25.6 12.8 0.00 0.0
1938 31.1 18.9 2.21 0.0
1937 29.4 19.4 0.00 0.0
1936 20.0 10.0 0.00 0.0
1935 32.8 12.8 0.00 0.0
1934 30.6 12.2 0.00 0.0
1933 29.4 10.0 0.28 0.0
1932 29.4 17.2 0.00 0.0
1931 30.6 15.0 0.00 0.0
1930 23.9 13.3 0.00 0.0
1929 26.7 11.1 0.00 0.0
1928 28.3 19.4 0.00 0.0
1927 20.0 11.7 0.05 0.0
1926 21.1 15.6 0.00 0.0
1925 31.1 11.7 0.00 0.0
1924 21.7 16.7 0.20 0.0
1923 23.9 11.1 0.00 0.0
1922 28.3 13.9 0.56 0.0
1921 25.6 10.0 0.00 0.0
1920 26.1 16.7 0.00 0.0
1919 22.2 17.8 0.36 0.0
1918 18.3 8.9 0.00 0.0
1917 22.2 14.4 0.30 0.0
1916 33.3 13.9 0.00 0.0
1915 19.4 12.8 0.00 0.0
1914 25.6 13.3 0.00 0.0
1913 36.1 21.1 0.05 0.0
1912 22.2 7.2 0.05 0.0
1911 27.2 12.2 0.00 0.0
1910 25.6 16.7 0.00 0.0
1909 22.8 13.9 0.38 0.0
1908 28.9 15.0 0.05 0.0
1907 27.2 15.6 0.25 0.0
1906 34.4 12.8 0.00 0.0
1905 23.9 8.9 0.00 0.0
1904 26.7 13.3 0.00 0.0
1903 25.6 10.0 0.00 0.0
1902 20.0 5.6 0.00 0.0
1901 29.4 11.1 0.00 0.0
1900 25.6 15.6 0.00 0.0
1899 31.7 11.1 0.00 0.0
1898 26.1 16.7 0.00 0.0
1897 18.9 12.8 0.05 0.0
1896 26.7 11.7 0.00 0.0
1895 30.6 12.2 1.04 0.0
1894 23.9 9.4 0.00 0.0
1893 20.6 11.1 0.00 0.0
1892 30.0 15.0 0.00 0.0
1891 27.2 11.7 0.53 0.0
1890 21.1 13.3 1.02 0.0
What's the all-time high for Ottawa on 8/17?
For the date of Aug 17, the highest temperature ever reached in Ottawa history is 36.1 °C which happened in 1913.
Highest Temperatures in Ottawa on August 17
Rank Temperature Year
1 36.1 °C 1913
2 34.4 °C 1906
3 33.3 °C 1916
4 32.8 °C 1987
4 32.8 °C 2009
4 32.8 °C 1935
7 31.8 °C 2015
8 31.7 °C 1899
9 31.3 °C 1995
10 31.1 °C 1938
10 31.1 °C 1925
10 31.1 °C 1940
What's the all-time low for Ottawa on 8/17?
For the date of Aug 17, the lowest temperature ever reached in Ottawa history is 5.0 °C which happened in 1979.
Lowest Temperatures in Ottawa on August 17
Rank Temperature Year
1 5.0 °C 1979
2 5.6 °C 1902
3 6.7 °C 1961
4 7.2 °C 1957
4 7.2 °C 1912
6 8.3 °C 1958
7 8.5 °C 2007
8 8.9 °C 1905
8 8.9 °C 1918
10 9.4 °C 1941
10 9.4 °C 1894
Lowest High Temperatures in Ottawa on August 17
Rank Temperature Year
1 18.2 °C 2000
2 18.3 °C 1984
2 18.3 °C 1918
2 18.3 °C 1943
5 18.9 °C 1963
5 18.9 °C 1897
5 18.9 °C 1951
8 19.4 °C 1962
8 19.4 °C 1915
10 20.0 °C 1927
10 20.0 °C 1953
10 20.0 °C 1936
10 20.0 °C 1941
10 20.0 °C 1902
What's the most it has ever rained in Ottawa on 8/17?
For the date of Aug 17, the most precipitation ever recorded in Ottawa history is 2.38 cm which happened in 2017.
All-Time Most Precipitation in Ottawa on August 17
Rank Precipitation Year
1 2.38 cm 2017
2 2.21 cm 1938
3 1.38 cm 1986
4 1.04 cm 1895
5 1.02 cm 1890
6 0.90 cm 2020
7 0.86 cm 1968
8 0.84 cm 2023
8 0.84 cm 1950
10 0.81 cm 1958
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.
© H Brothers Inc, 2021–2024
Contact us | Privacy policy