Ottawa December 31 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of December 31 (New Year's Eve).
December 31 All-Time Records
1889–2024
Highest temperature 9.4 °C 1965
Lowest temperature -33.9 °C 1917
Lowest daily high -22.8 °C 1917
Highest daily low 2.5 °C 2022
Most precipitation 7.32 cm 1933
Most snow 20.3 cm 1948
December 31 Average Weather
1991–2020 1
Average high -3.6 °C
Average low -11.1 °C
Chance precipitation 52.1%
Chance snow 41.3%
Ottawa December 31 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 -4.5 -6.0 0.00 0.0
2022 6.0 2.5 1.82 0.0
2021 -1.0 -5.5 0.00 0.0
2020 1.0 -4.0 0.00 0.0
2019 1.0 -3.0 0.68 7.0
2018 1.0 -9.0 0.68 3.0
2017 -19.5 -24.5 0.00 0.0
2016 -2.5 -18.5 0.86 8.6
2015 -1.3 -6.9 0.21 2.4
2014 -6.0 -14.1 0.00 0.0
2013 -15.5 -21.8 0.09 1.0
2012 0.5 -13.2 0.02 0.5
2011 -1.3 -12.7 0.00 0.0
2010 6.7 0.4 0.08 0.0
2009 -4.2 -11.6 0.94 11.5
2008 -14.0 -17.7 0.00 0.0
2007 -1.8 -4.5 0.00 0.0
2006 1.7 -12.8 1.02 0.0
2005 -9.4 -14.8 0.00 0.0
2004 8.0 -7.2 0.10 0.0
2003 4.3 -1.5 0.00 0.0
2002 n/a -7.6 0.07 0.0
2001 -4.1 -8.0 0.06 0.6
2000 -4.2 -7.0 0.24 4.2
1999 -9.2 -24.8 0.06 1.0
1998 -18.2 -25.8 0.08 1.0
1997 -16.7 -19.3 0.00 0.0
1996 -16.0 -17.6 0.02 0.2
1995 0.9 -2.6 0.10 1.2
1994 -5.5 -15.3 0.46 6.1
1993 -1.9 -20.2 0.64 6.0
1992 -2.1 -6.1 0.08 0.0
1991 -6.0 -19.4 0.00 0.0
1990 -13.7 -18.8 0.00 0.0
1989 3.4 -18.6 0.46 0.0
1988 -4.0 -7.2 0.00 0.0
1987 3.0 -20.2 0.00 0.0
1986 -2.3 -5.8 0.00 0.0
1985 2.6 -10.2 0.00 0.0
1984 -7.3 -11.9 0.43 4.3
1983 -4.5 -13.9 0.00 0.0
1982 -2.0 -8.5 0.06 0.6
1981 1.0 -14.5 0.62 4.0
1980 -16.5 -24.5 0.00 0.0
1979 -2.5 -11.5 0.00 0.0
1978 6.5 -8.5 1.98 0.0
1977 -11.0 -20.5 0.00 0.0
1976 -14.4 -22.2 0.36 3.8
1975 1.1 -11.1 0.00 0.0
1974 -1.7 -12.8 0.03 0.3
1973 -6.1 -8.9 0.76 6.9
1972 3.3 -10.6 1.65 0.0
1971 -12.8 -21.7 0.00 0.5
1970 -11.7 -19.4 0.00 0.0
1969 -9.4 -15.6 0.00 0.0
1968 -8.3 -21.1 0.00 0.0
1967 -3.3 -10.0 0.25 1.5
1966 -3.3 -21.7 0.28 6.6
1965 9.4 1.7 0.00 0.0
1964 -3.9 -5.0 0.00 0.0
1963 -10.0 -27.2 0.00 0.0
1962 -16.7 -25.6 0.05 1.0
1961 -3.3 -17.2 0.00 0.0
1960 -7.8 -8.9 0.43 6.4
1959 -2.2 -8.9 0.00 0.0
1958 -11.1 -27.2 0.00 0.0
1957 2.8 -4.4 0.79 7.9
1956 -15.6 -24.4 0.61 6.1
1955 -16.1 -18.9 0.20 2.0
1954 -2.2 -12.2 0.00 0.0
1953 -15.0 -22.2 0.64 6.4
1952 -13.3 -19.4 0.00 0.0
1951 5.6 -3.9 0.13 0.0
1950 -1.1 -6.7 0.08 0.8
1949 -5.0 -18.9 0.00 0.0
1948 0.0 -6.7 2.95 20.3
1947 -11.7 -17.8 0.00 0.0
1946 -11.1 -27.8 0.00 0.0
1945 -4.4 -5.6 0.00 0.0
1944 -0.6 -16.1 0.58 3.3
1943 -1.7 -6.7 0.25 2.5
1942 n/a n/a 0.20 2.0
1941 -7.2 -14.4 0.00 0.0
1940 -3.3 -6.7 0.00 0.0
1939 -4.4 -9.4 0.03 0.3
1938 -10.0 -20.0 0.33 3.3
1937 -17.2 -23.9 0.00 0.0
1936 8.9 -2.2 0.00 0.0
1935 -4.4 -23.3 0.00 0.0
1934 -14.4 -30.0 0.18 1.8
1933 -2.2 -27.2 7.32 0.0
1932 0.0 -11.1 0.99 5.1
1931 -3.9 -12.8 0.00 0.0
1930 -9.4 -18.9 0.64 6.4
1929 0.0 -4.4 1.35 13.5
1928 -6.1 -13.9 0.00 0.0
1927 2.2 -2.8 2.74 4.6
1926 -2.8 -11.1 0.89 8.9
1925 -2.2 -13.9 0.00 0.0
1924 -3.9 -18.9 0.00 0.0
1923 -9.4 -13.9 0.25 2.5
1922 -5.6 -13.9 0.00 0.0
1921 -8.9 -16.1 0.51 5.1
1920 -2.2 -12.8 0.46 4.6
1919 -9.4 -21.7 0.00 0.0
1918 -13.9 -18.3 0.89 8.9
1917 -22.8 -33.9 0.00 0.0
1916 -5.6 -25.6 0.13 1.3
1915 -9.4 -22.2 0.00 0.0
1914 -9.4 -20.0 0.00 0.0
1913 -4.4 -12.8 0.13 1.3
1912 2.8 -0.6 0.00 0.0
1911 -11.1 -14.4 0.18 1.8
1910 -19.4 -31.7 0.00 0.0
1909 -6.7 -20.0 0.00 0.0
1908 2.2 -10.6 0.38 3.8
1907 0.6 -16.1 0.13 1.3
1906 1.7 -1.1 1.22 0.0
1905 2.2 -3.3 0.00 0.0
1904 2.2 -13.9 0.00 0.0
1903 -10.0 -21.1 0.30 3.0
1902 -1.7 -7.8 0.00 0.0
1901 -1.1 -13.3 0.30 3.0
1900 1.1 -6.7 0.38 3.8
1899 -20.6 -27.8 0.00 0.0
1898 -3.3 -23.3 0.00 0.0
1897 0.6 -10.6 0.00 0.0
1896 3.3 -12.2 0.00 0.0
1895 3.9 -4.4 0.00 0.0
1894 -8.3 -13.9 0.51 5.1
1893 -15.0 -23.3 0.25 2.5
1892 1.7 -10.6 0.25 2.5
1891 -11.7 -20.0 0.00 0.0
1890 -15.0 -20.6 0.00 0.0
1889 -9.4 -20.6 0.00 0.0
What's the all-time high for Ottawa on 12/31?
For the date of Dec 31, the highest temperature ever reached in Ottawa history is 9.4 °C which happened in 1965.
Highest Temperatures in Ottawa on December 31
Rank Temperature Year
1 9.4 °C 1965
2 8.9 °C 1936
3 8.0 °C 2004
4 6.7 °C 2010
5 6.5 °C 1978
6 6.0 °C 2022
7 5.6 °C 1951
8 4.3 °C 2003
9 3.9 °C 1895
10 3.4 °C 1989
What's the all-time low for Ottawa on 12/31?
For the date of Dec 31, the lowest temperature ever reached in Ottawa history is -33.9 °C which happened in 1917.
Lowest Temperatures in Ottawa on December 31
Rank Temperature Year
1 -33.9 °C 1917
2 -31.7 °C 1910
3 -30.0 °C 1934
4 -27.8 °C 1899
4 -27.8 °C 1946
6 -27.2 °C 1933
6 -27.2 °C 1958
6 -27.2 °C 1963
9 -25.8 °C 1998
10 -25.6 °C 1916
10 -25.6 °C 1962
Lowest High Temperatures in Ottawa on December 31
Rank Temperature Year
1 -22.8 °C 1917
2 -20.6 °C 1899
3 -19.5 °C 2017
4 -19.4 °C 1910
5 -18.2 °C 1998
6 -17.2 °C 1937
7 -16.7 °C 1962
7 -16.7 °C 1997
9 -16.5 °C 1980
10 -16.1 °C 1955
What's the most it has ever rained in Ottawa on 12/31?
For the date of Dec 31, the most precipitation ever recorded in Ottawa history is 7.32 cm which happened in 1933.
All-Time Most Precipitation in Ottawa on December 31
Rank Precipitation Year
1 7.32 cm 1933
2 2.95 cm 1948
3 2.74 cm 1927
4 1.98 cm 1978
5 1.82 cm 2022
6 1.65 cm 1972
7 1.35 cm 1929
8 1.22 cm 1906
9 1.02 cm 2006
10 0.99 cm 1932
All-Time Most Snow in Ottawa on December 31
Rank Precipitation Year
1 20.3 cm 1948
2 13.5 cm 1929
3 11.5 cm 2009
4 8.9 cm 1926
4 8.9 cm 1918
6 8.6 cm 2016
7 7.9 cm 1957
8 7.0 cm 2019
9 6.9 cm 1973
10 6.6 cm 1966
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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