Ottawa July 4 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of July 4.
July 4 All-Time Records
1889–2024
Highest temperature 37.8 °C 1913
Lowest temperature 6.1 °C 1929
Lowest daily high 16.1 °C 1961
Highest daily low 24.2 °C 2002
Most precipitation 3.63 cm 1896
Most snow none -
July 4 Average Weather
1991–2020 1
Average high 26.5 °C
Average low 15.7 °C
Chance precipitation 43.1%
Chance snow 0%
Ottawa July 4 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 31.0 18.0 0.00 0.0
2022 27.0 15.0 0.04 0.0
2021 26.0 12.0 0.00 0.0
2020 30.5 17.5 0.06 0.0
2019 32.5 16.5 0.00 0.0
2018 34.5 17.0 0.00 0.0
2017 26.0 12.5 0.00 0.0
2016 29.5 15.0 0.00 0.0
2015 24.9 10.9 0.00 0.0
2014 23.0 15.2 0.00 0.0
2013 29.2 18.6 0.00 0.0
2012 32.8 17.8 0.00 0.0
2011 30.0 17.0 0.00 0.0
2010 32.2 17.9 0.00 0.0
2009 20.3 14.6 0.00 0.0
2008 25.4 9.7 0.00 0.0
2007 21.5 12.6 0.12 0.0
2006 26.0 18.4 0.00 0.0
2005 29.9 17.4 0.88 0.0
2004 29.5 13.8 0.00 0.0
2003 30.4 20.5 2.24 0.0
2002 30.0 24.2 0.00 0.0
2001 25.0 13.5 1.24 0.0
2000 26.5 15.5 0.00 0.0
1999 32.9 21.0 0.15 0.0
1998 20.7 17.7 0.38 0.0
1997 19.0 14.4 0.08 0.0
1996 22.5 15.4 0.00 0.0
1995 29.6 9.8 0.00 0.0
1994 25.0 13.4 0.00 0.0
1993 25.9 15.4 0.00 0.0
1992 23.2 13.2 0.36 0.0
1991 27.0 17.5 0.66 0.0
1990 27.5 21.3 0.02 0.0
1989 30.1 17.0 0.00 0.0
1988 29.4 12.4 0.00 0.0
1987 23.9 15.9 0.00 0.0
1986 22.5 9.7 0.98 0.0
1985 29.3 14.0 0.00 0.0
1984 27.4 18.5 0.17 0.0
1983 31.5 22.0 0.16 0.0
1982 22.5 6.5 0.00 0.0
1981 26.5 18.0 0.80 0.0
1980 27.0 13.5 0.00 0.0
1979 23.0 7.0 0.02 0.0
1978 27.0 12.0 0.00 0.0
1977 26.0 15.0 0.26 0.0
1976 28.3 13.9 0.00 0.0
1975 28.9 13.3 0.00 0.0
1974 27.8 20.0 0.23 0.0
1973 29.4 16.1 0.00 0.0
1972 20.0 8.3 0.00 0.0
1971 27.8 11.1 0.00 0.0
1970 27.2 16.7 0.30 0.0
1969 25.6 10.6 1.02 0.0
1968 22.8 11.7 0.00 0.0
1967 21.1 10.0 0.00 0.0
1966 26.7 18.9 0.00 0.0
1965 25.0 14.4 0.00 0.0
1964 20.6 14.4 0.00 0.0
1963 27.2 11.7 0.00 0.0
1962 27.2 10.6 0.00 0.0
1961 16.1 11.7 0.00 0.0
1960 21.1 10.6 0.20 0.0
1959 30.6 13.3 0.00 0.0
1958 21.7 8.3 0.00 0.0
1957 27.2 16.7 0.61 0.0
1956 21.7 11.1 0.00 0.0
1955 33.9 16.7 1.14 0.0
1954 23.9 7.8 0.79 0.0
1953 26.1 8.3 0.00 0.0
1952 28.9 21.1 0.00 0.0
1951 19.4 15.6 1.63 0.0
1950 24.4 15.0 0.10 0.0
1949 30.6 18.3 0.00 0.0
1948 28.9 9.4 0.64 0.0
1947 26.7 11.1 0.00 0.0
1946 26.7 12.8 0.00 0.0
1945 25.0 11.1 0.00 0.0
1944 32.8 16.1 0.00 0.0
1943 21.1 17.2 1.98 0.0
1942 21.1 14.4 0.86 0.0
1941 28.9 8.3 0.00 0.0
1940 24.4 7.8 0.00 0.0
1939 30.0 12.2 0.00 0.0
1938 28.3 8.3 0.00 0.0
1937 28.3 11.7 0.00 0.0
1936 22.2 15.0 0.43 0.0
1935 30.6 20.0 0.00 0.0
1934 25.6 11.1 0.00 0.0
1933 30.0 8.9 0.00 0.0
1932 22.8 8.9 0.00 0.0
1931 28.9 18.3 0.00 0.0
1930 22.8 7.2 0.00 0.0
1929 20.0 6.1 0.79 0.0
1928 28.3 16.7 n/a 0.0
1927 17.2 7.8 0.00 0.0
1926 25.0 8.3 0.00 0.0
1925 25.0 13.9 0.64 0.0
1924 26.7 11.1 0.00 0.0
1923 26.1 15.6 0.15 0.0
1922 24.4 12.2 0.00 0.0
1921 36.1 21.1 0.00 0.0
1920 20.0 13.3 0.41 0.0
1919 37.2 20.0 0.00 0.0
1918 27.2 10.0 0.00 0.0
1917 24.4 11.7 0.00 0.0
1916 23.3 13.9 0.28 0.0
1915 27.2 11.7 0.25 0.0
1914 27.8 13.3 0.00 0.0
1913 37.8 16.1 0.00 0.0
1912 33.3 19.4 0.00 0.0
1911 32.2 22.8 0.00 0.0
1910 26.1 13.9 0.00 0.0
1909 21.1 9.4 0.03 0.0
1908 28.3 15.6 0.13 0.0
1907 26.7 8.9 0.00 0.0
1906 20.6 13.9 0.86 0.0
1905 27.8 16.1 0.00 0.0
1904 26.1 10.0 0.00 0.0
1903 25.0 12.2 0.00 0.0
1902 29.4 13.9 0.00 0.0
1901 21.1 15.6 0.00 0.0
1900 25.6 17.8 0.00 0.0
1899 26.7 18.3 0.58 0.0
1898 24.4 15.6 0.05 0.0
1897 34.4 18.9 0.00 0.0
1896 17.2 11.7 3.63 0.0
1895 32.8 13.9 0.00 0.0
1894 23.3 14.4 0.13 0.0
1893 25.0 15.0 0.00 0.0
1892 19.4 10.0 1.35 0.0
1891 20.0 12.2 0.00 0.0
1890 26.1 14.4 0.00 0.0
What's the all-time high for Ottawa on 7/4?
For the date of Jul 4, the highest temperature ever reached in Ottawa history is 37.8 °C which happened in 1913.
Highest Temperatures in Ottawa on July 4
Rank Temperature Year
1 37.8 °C 1913
2 37.2 °C 1919
3 36.1 °C 1921
4 34.5 °C 2018
5 34.4 °C 1897
6 33.9 °C 1955
7 33.3 °C 1912
8 32.9 °C 1999
9 32.8 °C 2012
9 32.8 °C 1895
9 32.8 °C 1944
What's the all-time low for Ottawa on 7/4?
For the date of Jul 4, the lowest temperature ever reached in Ottawa history is 6.1 °C which happened in 1929.
Lowest Temperatures in Ottawa on July 4
Rank Temperature Year
1 6.1 °C 1929
2 6.5 °C 1982
3 7.0 °C 1979
4 7.2 °C 1930
5 7.8 °C 1954
5 7.8 °C 1927
5 7.8 °C 1940
8 8.3 °C 1926
8 8.3 °C 1953
8 8.3 °C 1941
8 8.3 °C 1958
8 8.3 °C 1972
8 8.3 °C 1938
Lowest High Temperatures in Ottawa on July 4
Rank Temperature Year
1 16.1 °C 1961
2 17.2 °C 1896
2 17.2 °C 1927
4 19.0 °C 1997
5 19.4 °C 1892
5 19.4 °C 1951
7 20.0 °C 1972
7 20.0 °C 1891
7 20.0 °C 1920
7 20.0 °C 1929
What's the most it has ever rained in Ottawa on 7/4?
For the date of Jul 4, the most precipitation ever recorded in Ottawa history is 3.63 cm which happened in 1896.
All-Time Most Precipitation in Ottawa on July 4
Rank Precipitation Year
1 3.63 cm 1896
2 2.24 cm 2003
3 1.98 cm 1943
4 1.63 cm 1951
5 1.35 cm 1892
6 1.24 cm 2001
7 1.14 cm 1955
8 1.02 cm 1969
9 0.98 cm 1986
10 0.88 cm 2005
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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