Ottawa August 1 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of August 1.
August 1 All-Time Records
1889–2024
Highest temperature 37.8 °C 1917
Lowest temperature 4.4 °C 1947
Lowest daily high 18.9 °C 1929
Highest daily low 22.2 °C 2006
Most precipitation 4.92 cm 2000
Most snow none -
August 1 Average Weather
1991–2020 1
Average high 26.6 °C
Average low 15.7 °C
Chance precipitation 36.4%
Chance snow 0%
Ottawa August 1 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 23.0 9.0 0.00 0.0
2022 30.0 15.0 0.00 0.0
2021 19.0 13.0 0.40 0.0
2020 30.0 15.5 0.00 0.0
2019 27.5 11.0 0.00 0.0
2018 27.0 21.5 0.10 0.0
2017 29.0 14.0 0.00 0.0
2016 29.5 18.0 0.00 0.0
2015 26.5 14.2 0.00 0.0
2014 26.4 14.2 0.00 0.0
2013 23.2 17.8 1.80 0.0
2012 29.2 17.6 0.00 0.0
2011 30.4 19.6 0.00 0.0
2010 26.5 8.5 0.00 0.0
2009 27.6 15.5 0.74 0.0
2008 26.1 15.3 0.00 0.0
2007 31.4 15.1 0.00 0.0
2006 36.3 22.2 0.00 0.0
2005 27.0 17.0 0.02 0.0
2004 26.4 18.9 0.00 0.0
2003 25.8 19.0 0.00 0.0
2002 32.0 18.8 0.28 0.0
2001 32.8 14.8 0.00 0.0
2000 26.7 20.7 4.92 0.0
1999 27.0 21.5 0.00 0.0
1998 26.6 10.8 0.00 0.0
1997 26.7 16.7 0.00 0.0
1996 23.7 15.0 0.38 0.0
1995 31.5 16.1 1.36 0.0
1994 28.0 16.4 3.04 0.0
1993 28.4 15.5 0.47 0.0
1992 24.1 13.0 0.00 0.0
1991 30.1 18.8 0.00 0.0
1990 26.2 14.0 0.00 0.0
1989 29.0 11.8 0.00 0.0
1988 30.5 15.8 0.00 0.0
1987 25.1 8.9 0.00 0.0
1986 21.4 14.6 0.00 0.0
1985 23.8 10.4 0.00 0.0
1984 23.5 17.4 0.00 0.0
1983 28.5 20.0 0.02 0.0
1982 27.0 9.0 2.42 0.0
1981 29.0 13.0 0.00 0.0
1980 25.5 15.0 0.10 0.0
1979 26.0 18.5 0.00 0.0
1978 27.5 15.5 0.00 0.0
1977 26.5 18.0 0.00 0.0
1976 22.2 12.2 0.00 0.0
1975 35.6 21.7 0.00 0.0
1974 23.9 13.9 0.00 0.0
1973 22.2 19.4 1.60 0.0
1972 25.6 17.8 0.00 0.0
1971 24.4 11.7 0.00 0.0
1970 30.0 21.7 0.23 0.0
1969 29.4 17.2 0.13 0.0
1968 21.1 14.4 0.00 0.0
1967 26.1 15.0 0.00 0.0
1966 30.0 14.4 0.00 0.0
1965 26.1 12.2 1.52 0.0
1964 23.3 7.2 0.00 0.0
1963 20.6 13.3 0.03 0.0
1962 22.8 14.4 0.10 0.0
1961 23.3 10.6 0.00 0.0
1960 26.1 9.4 0.00 0.0
1959 22.2 16.7 0.00 0.0
1958 27.2 11.1 0.00 0.0
1957 27.2 15.6 0.00 0.0
1956 22.2 16.7 0.00 0.0
1955 37.2 21.7 0.00 0.0
1954 24.4 16.7 0.00 0.0
1953 22.8 8.3 0.00 0.0
1952 25.0 7.2 0.00 0.0
1951 22.8 17.2 0.00 0.0
1950 25.0 15.6 2.21 0.0
1949 26.7 11.7 0.00 0.0
1948 28.3 12.8 0.36 0.0
1947 20.6 4.4 0.00 0.0
1946 26.1 15.6 0.00 0.0
1945 28.9 16.7 0.00 0.0
1944 32.8 13.9 0.00 0.0
1943 29.4 14.4 0.00 0.0
1942 22.2 16.7 0.00 0.0
1941 29.4 17.8 0.00 0.0
1940 23.9 15.6 0.00 0.0
1939 24.4 15.6 0.00 0.0
1938 25.0 18.3 1.96 0.0
1937 25.0 12.8 0.05 0.0
1936 30.0 13.3 0.00 0.0
1935 27.8 17.2 0.00 0.0
1934 24.4 14.4 0.00 0.0
1933 30.0 17.8 1.78 0.0
1932 25.6 6.1 0.00 0.0
1931 22.8 7.2 0.00 0.0
1930 26.7 8.9 0.00 0.0
1929 18.9 12.2 1.78 0.0
1928 26.1 15.0 0.10 0.0
1927 27.8 15.6 0.00 0.0
1926 28.9 16.7 0.00 0.0
1925 21.1 10.6 1.22 0.0
1924 20.0 8.9 0.10 0.0
1923 28.3 15.0 0.00 0.0
1922 30.6 15.0 0.00 0.0
1921 21.1 8.3 0.00 0.0
1920 21.7 10.6 0.00 0.0
1919 23.3 12.2 0.46 0.0
1918 28.3 10.6 0.00 0.0
1917 37.8 21.1 0.00 0.0
1916 23.3 12.2 0.00 0.0
1915 30.0 18.9 0.00 0.0
1914 28.9 12.2 0.13 0.0
1913 28.9 16.7 0.05 0.0
1912 22.2 10.0 0.00 0.0
1911 36.7 15.6 0.00 0.0
1910 25.6 12.2 0.05 0.0
1909 26.1 9.4 0.00 0.0
1908 27.8 9.4 0.00 0.0
1907 27.8 11.7 0.00 0.0
1906 29.4 12.2 0.00 0.0
1905 23.9 11.7 0.00 0.0
1904 27.2 15.6 0.15 0.0
1903 22.8 8.9 0.00 0.0
1902 26.1 18.9 0.00 0.0
1901 21.7 12.2 0.00 0.0
1900 23.3 10.0 0.00 0.0
1899 28.9 14.4 0.00 0.0
1898 24.4 15.6 0.20 0.0
1897 23.9 16.1 0.08 0.0
1896 26.1 7.8 0.00 0.0
1895 19.4 11.1 0.00 0.0
1894 24.4 12.2 0.00 0.0
1893 21.1 15.0 0.00 0.0
1892 27.8 15.6 0.00 0.0
1891 22.8 12.2 0.08 0.0
1890 28.3 13.9 0.00 0.0
What's the all-time high for Ottawa on 8/1?
For the date of Aug 1, the highest temperature ever reached in Ottawa history is 37.8 °C which happened in 1917.
Highest Temperatures in Ottawa on August 1
Rank Temperature Year
1 37.8 °C 1917
2 37.2 °C 1955
3 36.7 °C 1911
4 36.3 °C 2006
5 35.6 °C 1975
6 32.8 °C 2001
6 32.8 °C 1944
8 32.0 °C 2002
9 31.5 °C 1995
10 31.4 °C 2007
What's the all-time low for Ottawa on 8/1?
For the date of Aug 1, the lowest temperature ever reached in Ottawa history is 4.4 °C which happened in 1947.
Lowest Temperatures in Ottawa on August 1
Rank Temperature Year
1 4.4 °C 1947
2 6.1 °C 1932
3 7.2 °C 1964
3 7.2 °C 1952
3 7.2 °C 1931
6 7.8 °C 1896
7 8.3 °C 1953
7 8.3 °C 1921
9 8.5 °C 2010
10 8.9 °C 1903
10 8.9 °C 1924
10 8.9 °C 1987
10 8.9 °C 1930
Lowest High Temperatures in Ottawa on August 1
Rank Temperature Year
1 18.9 °C 1929
2 19.0 °C 2021
3 19.4 °C 1895
4 20.0 °C 1924
5 20.6 °C 1963
5 20.6 °C 1947
7 21.1 °C 1921
7 21.1 °C 1893
7 21.1 °C 1925
7 21.1 °C 1968
What's the most it has ever rained in Ottawa on 8/1?
For the date of Aug 1, the most precipitation ever recorded in Ottawa history is 4.92 cm which happened in 2000.
All-Time Most Precipitation in Ottawa on August 1
Rank Precipitation Year
1 4.92 cm 2000
2 3.04 cm 1994
3 2.42 cm 1982
4 2.21 cm 1950
5 1.96 cm 1938
6 1.80 cm 2013
7 1.78 cm 1933
7 1.78 cm 1929
9 1.60 cm 1973
10 1.52 cm 1965
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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