Ottawa December 20 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of December 20.
December 20 All-Time Records
1889–2024
Highest temperature 13.3 °C 1957
Lowest temperature -36.7 °C 1942
Lowest daily high -25.6 °C 1942
Highest daily low 1.7 °C 1957
Most precipitation 2.41 cm 1951
Most snow 37.6 cm 1973
December 20 Average Weather
1991–2020 1
Average high -2.4 °C
Average low -9.6 °C
Chance precipitation 47.9%
Chance snow 37.0%
Ottawa December 20 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 0.0 -9.0 0.00 0.0
2022 -3.0 -8.0 0.00 0.0
2021 2.0 -18.0 0.00 0.0
2020 2.0 -5.0 0.32 3.0
2019 -10.5 -18.0 0.00 0.0
2018 3.0 -9.0 2.00 0.0
2017 -2.0 -5.0 0.00 0.0
2016 0.0 -20.0 0.00 0.0
2015 -0.2 -6.8 0.00 0.0
2014 -3.5 -14.5 0.00 0.0
2013 -3.1 -5.1 0.90 11.5
2012 0.5 -7.3 2.26 20.0
2011 -4.0 -9.6 0.00 0.0
2010 -1.7 -7.1 0.00 0.0
2009 -6.3 -13.5 0.00 0.0
2008 -13.3 -17.4 0.06 0.6
2007 -4.6 -8.6 0.00 0.0
2006 6.7 -5.4 0.00 0.0
2005 -4.0 -5.8 0.10 1.0
2004 -21.0 -30.0 0.00 0.0
2003 -3.2 -11.2 0.60 6.0
2002 5.4 -2.4 0.30 0.0
2001 1.8 -0.2 0.46 4.6
2000 -9.7 -10.5 0.00 0.0
1999 6.0 -8.2 0.44 0.0
1998 -5.7 -11.0 0.52 2.4
1997 -3.9 -8.3 0.00 0.0
1996 -5.1 -7.0 0.04 0.6
1995 -11.3 -16.2 0.42 5.0
1994 2.9 -12.0 0.00 0.0
1993 3.8 -4.2 0.32 2.1
1992 2.9 -2.3 0.02 0.2
1991 1.2 -17.5 0.58 5.8
1990 -8.9 -17.5 0.00 0.0
1989 -8.7 -15.0 0.35 5.2
1988 8.1 -8.2 0.00 0.0
1987 4.4 -7.3 0.92 6.2
1986 1.5 -4.5 0.00 0.0
1985 -13.7 -22.0 0.17 0.6
1984 0.3 -6.7 0.00 0.0
1983 -20.0 -27.3 0.00 0.0
1982 -3.0 -7.0 0.14 6.2
1981 -10.0 -12.5 0.00 0.0
1980 -17.5 -25.0 0.00 0.0
1979 -11.0 -19.5 0.00 0.0
1978 -7.0 -17.0 0.62 5.0
1977 -2.0 -5.0 0.76 7.6
1976 -3.9 -8.9 0.58 1.0
1975 -17.2 -25.6 0.03 0.5
1974 -1.7 -3.3 0.00 0.0
1973 -6.7 -16.1 2.39 37.6
1972 -9.4 -15.0 0.00 0.0
1971 -3.3 -12.8 0.23 2.3
1970 -10.6 -13.3 0.10 3.0
1969 -8.3 -12.2 0.05 1.0
1968 -3.9 -7.8 0.15 2.0
1967 3.3 -2.8 0.00 0.0
1966 -7.2 -13.9 0.38 5.3
1965 -10.6 -21.7 0.03 0.8
1964 -3.9 -6.1 0.00 0.3
1963 -17.2 -21.7 0.00 0.0
1962 -17.2 -18.9 0.00 0.0
1961 -2.8 -3.9 0.15 3.8
1960 -7.8 -18.9 0.33 7.9
1959 -11.1 -14.4 0.00 0.0
1958 -21.1 -28.3 0.30 3.0
1957 13.3 1.7 1.30 0.0
1956 3.3 0.6 0.00 0.0
1955 -22.2 -27.8 0.00 0.0
1954 -12.2 -22.2 0.00 0.0
1953 2.8 -10.6 0.41 0.0
1952 -4.4 -12.2 0.00 0.0
1951 -4.4 -26.1 2.41 24.1
1950 -6.1 -13.3 0.00 0.0
1949 5.6 0.6 1.80 0.0
1948 -3.9 -11.1 0.00 0.0
1947 -11.1 -22.2 0.00 0.0
1946 -2.8 -12.2 0.76 7.6
1945 -13.3 -20.6 0.00 0.0
1944 -8.3 -21.7 0.94 9.4
1943 -1.1 -9.4 0.64 6.4
1942 -25.6 -36.7 0.00 0.0
1941 -13.3 -15.0 0.00 0.0
1940 2.8 -3.9 0.56 0.0
1939 0.6 -6.7 1.37 8.4
1938 -5.0 -12.2 0.00 0.0
1937 -15.6 -22.2 0.00 0.0
1936 3.3 -8.9 0.51 0.0
1935 -10.6 -15.0 0.00 0.0
1934 -6.1 -12.8 0.13 1.3
1933 -10.0 -11.7 0.64 6.4
1932 0.6 -5.0 0.00 0.0
1931 -5.0 -12.2 0.00 0.0
1930 0.0 -6.1 0.25 2.5
1929 -5.6 -8.9 0.84 8.4
1928 -4.4 -11.1 0.08 0.8
1927 0.0 -7.8 0.00 0.0
1926 -9.4 -13.9 0.48 4.8
1925 -2.8 -6.7 0.03 0.3
1924 -10.0 -21.7 0.00 0.0
1923 1.1 -9.4 0.46 0.0
1922 -12.2 -22.8 0.08 0.8
1921 -5.0 -11.7 0.00 0.0
1920 -1.7 -5.6 0.00 0.0
1919 -5.0 -13.3 0.00 0.0
1918 -0.6 -8.9 0.00 0.0
1917 2.2 0.0 0.08 0.0
1916 -8.3 -20.0 0.00 0.0
1915 -3.3 -7.2 0.00 0.0
1914 1.7 -12.2 0.00 0.0
1913 1.7 -6.1 0.00 0.0
1912 -0.6 -10.6 0.00 0.0
1911 -6.1 -20.0 0.00 0.0
1910 0.0 -6.7 0.00 0.0
1909 -5.0 -11.1 0.00 0.0
1908 -1.1 -10.0 0.25 2.5
1907 -2.2 -4.4 0.00 0.0
1906 -9.4 -19.4 0.30 3.0
1905 -2.2 -10.0 0.00 0.0
1904 -1.7 -19.4 0.00 0.0
1903 -2.2 -15.0 1.02 10.2
1902 1.7 -14.4 0.00 0.0
1901 -13.3 -16.7 0.00 0.0
1900 3.3 -3.3 0.00 0.0
1899 2.2 -6.1 0.00 0.0
1898 -2.2 -15.0 0.25 2.5
1897 -13.9 -22.2 0.51 5.1
1896 -13.3 -17.8 0.00 0.0
1895 10.0 1.1 0.00 0.0
1894 3.3 -1.7 0.00 0.0
1893 -8.3 -25.0 0.00 0.0
1892 -10.0 -22.2 0.00 0.0
1891 -3.9 -10.0 0.00 0.0
1890 -13.9 -24.4 0.00 0.0
1889 4.4 0.0 0.00 0.0
What's the all-time high for Ottawa on 12/20?
For the date of Dec 20, the highest temperature ever reached in Ottawa history is 13.3 °C which happened in 1957.
Highest Temperatures in Ottawa on December 20
Rank Temperature Year
1 13.3 °C 1957
2 10.0 °C 1895
3 8.1 °C 1988
4 6.7 °C 2006
5 6.0 °C 1999
6 5.6 °C 1949
7 5.4 °C 2002
8 4.4 °C 1987
8 4.4 °C 1889
10 3.8 °C 1993
What's the all-time low for Ottawa on 12/20?
For the date of Dec 20, the lowest temperature ever reached in Ottawa history is -36.7 °C which happened in 1942.
Lowest Temperatures in Ottawa on December 20
Rank Temperature Year
1 -36.7 °C 1942
2 -30.0 °C 2004
3 -28.3 °C 1958
4 -27.8 °C 1955
5 -27.3 °C 1983
6 -26.1 °C 1951
7 -25.6 °C 1975
8 -25.0 °C 1893
8 -25.0 °C 1980
10 -24.4 °C 1890
Lowest High Temperatures in Ottawa on December 20
Rank Temperature Year
1 -25.6 °C 1942
2 -22.2 °C 1955
3 -21.1 °C 1958
4 -21.0 °C 2004
5 -20.0 °C 1983
6 -17.5 °C 1980
7 -17.2 °C 1975
7 -17.2 °C 1963
7 -17.2 °C 1962
10 -15.6 °C 1937
What's the most it has ever rained in Ottawa on 12/20?
For the date of Dec 20, the most precipitation ever recorded in Ottawa history is 2.41 cm which happened in 1951.
All-Time Most Precipitation in Ottawa on December 20
Rank Precipitation Year
1 2.41 cm 1951
2 2.39 cm 1973
3 2.26 cm 2012
4 2.00 cm 2018
5 1.80 cm 1949
6 1.37 cm 1939
7 1.30 cm 1957
8 1.02 cm 1903
9 0.94 cm 1944
10 0.92 cm 1987
All-Time Most Snow in Ottawa on December 20
Rank Precipitation Year
1 37.6 cm 1973
2 24.1 cm 1951
3 20.0 cm 2012
4 11.5 cm 2013
5 10.2 cm 1903
6 9.4 cm 1944
7 8.4 cm 1939
7 8.4 cm 1929
9 7.9 cm 1960
10 7.6 cm 1977
10 7.6 cm 1946
Weather Station Details
Years Station Coordinates
1889–2024 Ottawa CDA location