Ottawa June 30 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of June 30.
June 30 All-Time Records
1889–2024
Highest temperature 34.4 °C 1964
Lowest temperature 3.9 °C 1936
Lowest daily high 15.6 °C 1988
Highest daily low 21.4 °C 2014
Most precipitation 3.45 cm 1903
Most snow none -
June 30 Average Weather
1991–2020 1
Average high 26.2 °C
Average low 15.3 °C
Chance precipitation 41.8%
Chance snow 0%
Ottawa June 30 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 26.0 14.5 0.18 0.0
2022 25.0 11.0 0.00 0.0
2021 30.0 21.0 0.00 0.0
2020 27.5 19.0 0.00 0.0
2019 23.5 15.0 0.00 0.0
2018 33.0 21.0 0.00 0.0
2017 23.5 15.0 2.30 0.0
2016 29.0 13.0 0.00 0.0
2015 24.2 12.9 0.30 0.0
2014 30.0 21.4 0.00 0.0
2013 24.5 14.5 0.00 0.0
2012 31.4 16.8 0.00 0.0
2011 23.0 14.5 0.00 0.0
2010 18.9 10.9 0.56 0.0
2009 23.5 15.1 0.67 0.0
2008 23.0 13.3 1.07 0.0
2007 21.2 10.8 0.08 0.0
2006 21.6 14.7 0.03 0.0
2005 28.8 18.1 0.00 0.0
2004 24.2 11.7 0.46 0.0
2003 25.0 15.4 0.00 0.0
2002 n/a n/a 0.00 0.0
2001 31.5 21.0 0.30 0.0
2000 24.9 14.2 0.00 0.0
1999 24.3 13.3 0.00 0.0
1998 23.2 17.1 0.92 0.0
1997 32.0 15.6 0.00 0.0
1996 31.2 18.5 0.72 0.0
1995 28.7 18.8 0.00 0.0
1994 25.2 17.5 0.00 0.0
1993 24.2 11.7 0.00 0.0
1992 22.5 12.6 0.00 0.0
1991 23.4 14.3 0.00 0.0
1990 18.4 12.1 0.14 0.0
1989 25.2 10.6 0.04 0.0
1988 15.6 8.7 0.92 0.0
1987 24.6 18.3 0.00 0.0
1986 22.7 10.8 0.00 0.0
1985 27.4 12.8 0.00 0.0
1984 25.1 11.7 0.00 0.0
1983 28.0 11.5 0.00 0.0
1982 21.0 13.0 0.00 0.0
1981 26.0 20.0 0.46 0.0
1980 22.5 16.5 0.04 0.0
1979 24.0 17.0 1.16 0.0
1978 24.0 12.0 0.00 0.0
1977 26.5 15.0 0.58 0.0
1976 20.0 15.0 0.53 0.0
1975 29.4 13.3 0.00 0.0
1974 25.6 15.0 0.08 0.0
1973 27.2 18.9 0.00 0.0
1972 22.2 17.2 0.05 0.0
1971 32.8 21.1 0.20 0.0
1970 25.6 16.7 0.00 0.0
1969 27.2 16.7 0.97 0.0
1968 28.3 16.1 1.80 0.0
1967 22.8 14.4 0.10 0.0
1966 26.1 16.1 0.00 0.0
1965 24.4 13.9 0.00 0.0
1964 34.4 20.0 0.00 0.0
1963 33.9 19.4 0.00 0.0
1962 23.9 16.1 0.58 0.0
1961 25.0 18.3 0.00 0.0
1960 25.0 15.6 0.00 0.0
1959 21.1 17.8 0.00 0.0
1958 26.1 17.2 0.66 0.0
1957 17.8 15.6 0.66 0.0
1956 20.6 9.4 0.56 0.0
1955 30.0 18.3 0.00 0.0
1954 21.1 15.6 0.00 0.0
1953 29.4 11.1 0.00 0.0
1952 25.0 10.6 0.00 0.0
1951 17.8 10.0 0.89 0.0
1950 23.9 8.3 0.00 0.0
1949 32.2 17.8 0.00 0.0
1948 28.3 18.9 0.08 0.0
1947 27.2 20.0 1.19 0.0
1946 32.8 20.0 0.00 0.0
1945 30.6 18.9 0.00 0.0
1944 26.7 15.0 0.00 0.0
1943 17.8 8.3 0.00 0.0
1942 32.2 16.7 0.48 0.0
1941 31.1 15.6 0.05 0.0
1940 18.9 10.6 0.36 0.0
1939 25.6 18.3 0.25 0.0
1938 23.9 6.1 0.69 0.0
1937 20.6 7.8 0.66 0.0
1936 20.0 3.9 0.00 0.0
1935 26.1 14.4 0.00 0.0
1934 29.4 15.6 0.00 0.0
1933 28.9 20.0 0.89 0.0
1932 24.4 13.3 0.13 0.0
1931 33.9 15.6 0.00 0.0
1930 30.6 14.4 0.00 0.0
1929 23.3 9.4 0.00 0.0
1928 21.7 15.0 1.57 0.0
1927 30.6 16.7 0.00 0.0
1926 26.7 12.8 0.00 0.0
1925 22.2 8.9 0.00 0.0
1924 23.3 10.6 0.00 0.0
1923 25.6 7.8 0.10 0.0
1922 28.9 15.0 0.00 0.0
1921 27.8 17.2 0.00 0.0
1920 27.8 16.7 0.00 0.0
1919 28.9 10.0 0.00 0.0
1918 26.7 15.0 0.00 0.0
1917 22.8 13.9 0.08 0.0
1916 26.7 9.4 0.00 0.0
1915 29.4 13.3 0.00 0.0
1914 21.1 11.7 0.89 0.0
1913 33.9 13.3 0.00 0.0
1912 23.3 6.1 0.00 0.0
1911 29.4 10.6 0.00 0.0
1910 29.4 13.9 0.00 0.0
1909 31.7 12.2 0.00 0.0
1908 26.1 13.9 0.97 0.0
1907 21.7 15.6 0.20 0.0
1906 23.9 12.2 0.30 0.0
1905 27.8 12.2 0.00 0.0
1904 27.2 15.0 0.18 0.0
1903 27.8 14.4 3.45 0.0
1902 22.2 9.4 0.10 0.0
1901 30.0 15.6 0.00 0.0
1900 17.2 7.8 0.38 0.0
1899 22.2 9.4 0.00 0.0
1898 30.6 15.6 0.00 0.0
1897 24.4 13.3 1.24 0.0
1896 22.2 6.1 0.00 0.0
1895 26.7 13.3 0.00 0.0
1894 28.3 15.0 0.00 0.0
1893 30.0 14.4 0.00 0.0
1892 19.4 13.9 0.76 0.0
1891 27.8 15.0 0.00 0.0
1890 32.8 16.7 0.00 0.0
What's the all-time high for Ottawa on 6/30?
For the date of Jun 30, the highest temperature ever reached in Ottawa history is 34.4 °C which happened in 1964.
Highest Temperatures in Ottawa on June 30
Rank Temperature Year
1 34.4 °C 1964
2 33.9 °C 1963
2 33.9 °C 1931
2 33.9 °C 1913
5 33.0 °C 2018
6 32.8 °C 1946
6 32.8 °C 1890
6 32.8 °C 1971
9 32.2 °C 1949
9 32.2 °C 1942
What's the all-time low for Ottawa on 6/30?
For the date of Jun 30, the lowest temperature ever reached in Ottawa history is 3.9 °C which happened in 1936.
Lowest Temperatures in Ottawa on June 30
Rank Temperature Year
1 3.9 °C 1936
2 6.1 °C 1912
2 6.1 °C 1896
2 6.1 °C 1938
5 7.8 °C 1937
5 7.8 °C 1900
5 7.8 °C 1923
8 8.3 °C 1950
8 8.3 °C 1943
10 8.7 °C 1988
Lowest High Temperatures in Ottawa on June 30
Rank Temperature Year
1 15.6 °C 1988
2 17.2 °C 1900
3 17.8 °C 1943
3 17.8 °C 1951
3 17.8 °C 1957
6 18.4 °C 1990
7 18.9 °C 1940
7 18.9 °C 2010
9 19.4 °C 1892
10 20.0 °C 1976
10 20.0 °C 1936
What's the most it has ever rained in Ottawa on 6/30?
For the date of Jun 30, the most precipitation ever recorded in Ottawa history is 3.45 cm which happened in 1903.
All-Time Most Precipitation in Ottawa on June 30
Rank Precipitation Year
1 3.45 cm 1903
2 2.30 cm 2017
3 1.80 cm 1968
4 1.57 cm 1928
5 1.24 cm 1897
6 1.19 cm 1947
7 1.16 cm 1979
8 1.07 cm 2008
9 0.97 cm 1908
9 0.97 cm 1969
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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