Ottawa November 21 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of November 21.
November 21 All-Time Records
1889–2024
Highest temperature 18.9 °C 1931
Lowest temperature -22.8 °C 1933
Lowest daily high -9.2 °C 1987
Highest daily low 6.0 °C 2005
Most precipitation 1.19 cm 1900
Most snow 8.4 cm 1932
November 21 Average Weather
1991–2020 1
Average high 4.5 °C
Average low -2.6 °C
Chance precipitation 47.4%
Chance snow 20.8%
Ottawa November 21 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 1.0 -7.0 1.10 6.0
2022 4.0 -12.0 0.08 0.0
2021 6.0 1.0 0.22 0.0
2020 5.0 2.0 0.00 0.0
2019 3.5 -5.0 0.00 0.0
2018 -3.0 -9.5 0.00 0.0
2017 9.0 -6.0 0.34 0.0
2016 -1.0 -4.0 0.30 3.4
2015 7.1 -2.5 0.00 0.0
2014 -2.0 -9.6 0.00 0.0
2013 4.1 -6.5 0.12 0.0
2012 10.2 -3.1 0.00 0.0
2011 0.4 -6.9 0.00 0.0
2010 0.2 -6.0 0.10 0.0
2009 9.7 4.7 0.00 0.0
2008 -4.5 -9.8 0.00 0.0
2007 3.3 0.0 0.70 8.0
2006 2.9 -4.8 0.00 0.0
2005 7.7 6.0 0.00 0.0
2004 8.7 0.5 0.04 0.0
2003 10.4 -1.2 0.00 0.0
2002 6.7 1.6 0.06 0.0
2001 6.5 -2.5 0.00 0.0
2000 1.4 -3.5 0.05 0.5
1999 9.2 3.7 0.02 0.0
1998 2.2 -0.7 0.00 0.0
1997 2.9 0.4 0.00 0.0
1996 -0.6 -4.2 0.00 0.0
1995 3.6 0.0 0.06 0.0
1994 10.8 -0.1 0.96 0.0
1993 7.7 -7.3 0.04 0.4
1992 12.2 -1.7 0.00 0.0
1991 7.3 2.8 0.00 0.0
1990 1.3 -0.5 0.18 0.0
1989 -6.0 -10.2 0.00 0.0
1988 1.6 -0.2 0.04 0.4
1987 -9.2 -15.2 0.00 0.0
1986 -2.5 -7.2 0.04 0.6
1985 2.2 1.2 0.00 0.0
1984 -1.5 -5.7 0.00 0.0
1983 8.0 -2.0 0.00 0.0
1982 11.0 4.5 1.06 0.0
1981 2.0 0.0 0.12 1.6
1980 4.0 -2.0 0.02 0.0
1979 6.0 3.0 0.40 0.0
1978 -5.5 -12.0 0.00 0.0
1977 9.0 0.5 0.10 0.0
1976 -2.2 -7.2 0.00 0.0
1975 3.9 0.0 1.04 0.0
1974 0.6 -2.8 0.13 3.6
1973 1.1 -6.1 0.61 0.0
1972 -3.9 -8.3 0.00 0.0
1971 1.1 0.0 0.48 6.1
1970 6.1 3.3 0.00 0.0
1969 -5.6 -8.9 0.00 0.0
1968 2.2 -7.8 0.51 4.6
1967 -1.7 -16.1 0.23 3.8
1966 2.2 -10.0 0.00 0.0
1965 0.0 -3.3 0.08 1.0
1964 -2.2 -3.9 0.51 8.1
1963 10.0 3.3 0.18 0.0
1962 6.1 -1.1 0.00 0.0
1961 1.7 -2.8 0.00 0.0
1960 7.2 -0.6 0.00 0.0
1959 -3.3 -6.7 0.53 5.3
1958 5.0 0.6 0.00 0.0
1957 5.6 0.0 0.00 0.0
1956 11.7 0.6 0.84 0.0
1955 0.6 -5.0 0.00 0.0
1954 0.0 -1.1 0.00 0.0
1953 8.3 0.6 0.10 0.0
1952 10.0 3.9 0.30 0.0
1951 -1.1 -13.9 0.00 0.0
1950 -2.2 -4.4 0.00 0.0
1949 -3.3 -4.4 0.00 0.0
1948 5.6 1.7 0.20 0.0
1947 2.8 0.0 0.00 0.0
1946 7.8 0.0 0.64 0.0
1945 0.6 -6.7 1.02 7.6
1944 1.7 -3.9 0.15 1.5
1943 1.7 -3.3 0.00 0.0
1942 -0.6 -3.3 0.00 0.0
1941 5.0 0.6 0.18 0.0
1940 10.0 -4.4 0.76 0.0
1939 0.6 -8.9 0.00 0.0
1938 1.7 -6.1 0.00 0.0
1937 -1.1 -3.9 0.00 0.0
1936 7.8 0.6 0.00 0.0
1935 6.1 -1.1 0.00 0.0
1934 9.4 -0.6 0.00 0.0
1933 -6.1 -22.8 0.97 0.0
1932 1.7 -5.6 0.84 8.4
1931 18.9 5.0 0.00 0.0
1930 10.6 1.7 0.00 0.0
1929 -3.3 -12.2 0.00 0.0
1928 -1.1 -6.7 0.00 0.0
1927 2.8 -3.9 0.64 6.4
1926 -1.1 -5.0 0.00 0.0
1925 6.1 -0.6 0.00 0.0
1924 10.0 0.6 0.00 0.0
1923 10.6 2.2 0.00 0.0
1922 0.0 -2.2 0.00 0.0
1921 5.6 -2.8 0.00 0.0
1920 -1.7 -8.9 0.00 0.0
1919 5.6 -5.6 0.00 0.0
1918 2.8 0.0 0.00 0.0
1917 -0.6 -4.4 0.00 0.0
1916 -3.9 -11.7 0.00 0.0
1915 5.0 0.6 0.00 0.0
1914 -1.1 -7.2 0.00 0.0
1913 5.0 -1.7 0.00 0.0
1912 12.8 -1.1 0.00 0.0
1911 0.0 -5.6 0.00 0.0
1910 -0.6 -8.3 0.00 0.0
1909 10.0 2.8 0.23 0.0
1908 3.9 -10.6 0.00 0.0
1907 7.2 -3.3 0.64 0.0
1906 2.2 -1.1 0.20 0.0
1905 3.3 -10.6 0.00 0.0
1904 2.8 -1.1 0.36 0.0
1903 -1.1 -14.4 0.00 0.0
1902 11.1 3.9 0.08 0.0
1901 0.6 -8.3 0.00 0.0
1900 12.8 0.6 1.19 0.0
1899 0.0 -2.8 0.00 0.0
1898 5.6 -2.2 0.00 0.0
1897 6.1 -5.0 0.00 0.0
1896 -3.9 -8.9 0.00 0.0
1895 -1.7 -13.3 0.00 0.0
1894 8.9 -6.1 0.00 0.0
1893 3.9 -7.2 0.00 0.0
1892 -1.7 -5.0 0.00 0.0
1891 10.0 1.1 0.28 0.0
1890 3.3 -7.2 0.00 0.0
1889 4.4 3.3 1.19 0.0
What's the all-time high for Ottawa on 11/21?
For the date of Nov 21, the highest temperature ever reached in Ottawa history is 18.9 °C which happened in 1931.
Highest Temperatures in Ottawa on November 21
Rank Temperature Year
1 18.9 °C 1931
2 12.8 °C 1912
2 12.8 °C 1900
4 12.2 °C 1992
5 11.7 °C 1956
6 11.1 °C 1902
7 11.0 °C 1982
8 10.8 °C 1994
9 10.6 °C 1930
9 10.6 °C 1923
What's the all-time low for Ottawa on 11/21?
For the date of Nov 21, the lowest temperature ever reached in Ottawa history is -22.8 °C which happened in 1933.
Lowest Temperatures in Ottawa on November 21
Rank Temperature Year
1 -22.8 °C 1933
2 -16.1 °C 1967
3 -15.2 °C 1987
4 -14.4 °C 1903
5 -13.9 °C 1951
6 -13.3 °C 1895
7 -12.2 °C 1929
8 -12.0 °C 1978
8 -12.0 °C 2022
10 -11.7 °C 1916
Lowest High Temperatures in Ottawa on November 21
Rank Temperature Year
1 -9.2 °C 1987
2 -6.1 °C 1933
3 -6.0 °C 1989
4 -5.6 °C 1969
5 -5.5 °C 1978
6 -4.5 °C 2008
7 -3.9 °C 1916
7 -3.9 °C 1972
7 -3.9 °C 1896
10 -3.3 °C 1949
10 -3.3 °C 1959
10 -3.3 °C 1929
What's the most it has ever rained in Ottawa on 11/21?
For the date of Nov 21, the most precipitation ever recorded in Ottawa history is 1.19 cm which has happened 2 times, most recently in 1900.
All-Time Most Precipitation in Ottawa on November 21
Rank Precipitation Year
1 1.19 cm 1900
1 1.19 cm 1889
3 1.10 cm 2023
4 1.06 cm 1982
5 1.04 cm 1975
6 1.02 cm 1945
7 0.97 cm 1933
8 0.96 cm 1994
9 0.84 cm 1932
9 0.84 cm 1956
All-Time Most Snow in Ottawa on November 21
Rank Precipitation Year
1 8.4 cm 1932
2 8.1 cm 1964
3 8.0 cm 2007
4 7.6 cm 1945
5 6.4 cm 1927
6 6.1 cm 1971
7 6.0 cm 2023
8 5.3 cm 1959
9 4.6 cm 1968
10 3.8 cm 1967
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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