Ottawa May 12 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of May 12.
May 12 All-Time Records
1889–2024
Highest temperature 31.1 °C 1893
Lowest temperature -2.8 °C 1907
Lowest daily high 9.4 °C 1996
Highest daily low 16.7 °C 1912
Most precipitation 2.79 cm 1974
Most snow 0.4 cm 1996
May 12 Average Weather
1991–2020 1
Average high 18.7 °C
Average low 7.4 °C
Chance precipitation 41.1%
Chance snow 0.4%
Ottawa May 12 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 26.5 14.0 0.04 0.0
2022 30.5 11.0 0.00 0.0
2021 18.0 4.5 0.00 0.0
2020 n/a n/a n/a n/a
2019 17.0 6.0 0.00 0.0
2018 18.5 0.5 0.00 0.0
2017 19.5 7.5 0.06 0.0
2016 26.5 9.5 0.10 0.0
2015 22.0 7.5 0.19 0.0
2014 21.3 10.4 0.04 0.0
2013 12.2 6.5 0.04 0.0
2012 26.1 4.1 0.32 0.0
2011 22.0 8.4 0.00 0.0
2010 16.5 5.1 0.00 0.0
2009 18.2 2.5 0.00 0.0
2008 19.2 8.1 0.00 0.0
2007 14.9 4.6 0.00 0.0
2006 15.4 13.1 2.57 0.0
2005 10.4 -1.6 0.00 0.0
2004 26.5 8.6 0.00 0.0
2003 13.3 10.1 0.59 0.0
2002 11.5 7.0 0.00 0.0
2001 11.3 7.8 0.36 0.0
2000 20.8 9.3 0.22 0.0
1999 15.3 5.5 0.00 0.0
1998 22.7 13.2 0.00 0.0
1997 14.2 8.5 0.34 0.0
1996 9.4 1.2 0.04 0.4
1995 14.8 11.9 0.04 0.0
1994 12.5 7.4 0.00 0.0
1993 19.0 11.4 0.10 0.0
1992 26.8 12.0 0.00 0.0
1991 26.2 16.4 0.00 0.0
1990 17.6 3.1 0.04 0.0
1989 20.9 10.6 0.94 0.0
1988 19.1 3.9 0.08 0.0
1987 13.5 7.3 0.00 0.0
1986 19.0 7.9 0.00 0.0
1985 26.2 9.4 0.04 0.0
1984 19.1 11.0 0.27 0.0
1983 18.0 2.0 0.00 0.0
1982 20.0 8.5 0.00 0.0
1981 17.0 8.5 0.74 0.0
1980 19.5 8.0 0.00 0.0
1979 21.5 12.5 2.00 0.0
1978 20.5 10.0 0.40 0.0
1977 20.0 10.0 0.02 0.0
1976 11.7 2.2 0.03 0.0
1975 20.0 7.2 0.00 0.0
1974 15.0 7.8 2.79 0.0
1973 15.6 6.1 0.23 0.0
1972 22.8 2.8 0.00 0.0
1971 17.8 11.1 0.20 0.0
1970 17.2 1.7 0.00 0.0
1969 11.7 1.1 0.43 0.0
1968 18.9 8.3 0.00 0.0
1967 12.2 1.7 0.00 0.0
1966 11.7 1.7 0.81 0.0
1965 24.4 4.4 0.00 0.0
1964 21.7 5.6 0.00 0.0
1963 16.7 1.7 0.00 0.0
1962 18.3 2.8 0.00 0.0
1961 23.9 7.2 0.00 0.0
1960 15.6 8.9 1.68 0.0
1959 22.2 5.6 0.00 0.0
1958 17.2 8.3 0.00 0.0
1957 21.7 8.9 0.00 0.0
1956 26.7 8.9 0.05 0.0
1955 21.1 2.8 0.00 0.0
1954 15.6 7.2 0.00 0.0
1953 25.0 8.3 0.13 0.0
1952 11.7 8.3 1.93 0.0
1951 16.7 7.2 0.00 0.0
1950 15.6 3.3 0.15 0.0
1949 15.0 2.2 0.00 0.0
1948 19.4 10.0 0.00 0.0
1947 24.4 8.9 0.76 0.0
1946 15.6 3.3 0.00 0.0
1945 11.7 0.0 0.00 0.0
1944 22.8 5.6 0.00 0.0
1943 16.7 7.8 0.00 0.0
1942 11.1 3.9 1.27 0.0
1941 12.2 2.2 0.00 0.0
1940 13.9 -2.2 0.00 0.0
1939 11.1 -1.1 0.00 0.0
1938 10.0 1.7 0.30 0.0
1937 23.9 4.4 0.05 0.0
1936 25.0 15.6 0.00 0.0
1935 16.7 1.7 0.00 0.0
1934 13.9 0.6 0.00 0.0
1933 12.8 6.1 0.64 0.0
1932 22.2 10.0 0.00 0.0
1931 15.6 5.6 0.00 0.0
1930 26.1 3.3 0.00 0.0
1929 19.4 12.2 1.52 0.0
1928 14.4 1.1 0.00 0.0
1927 14.4 6.7 0.20 0.0
1926 18.3 2.2 0.00 0.0
1925 18.9 2.2 0.00 0.0
1924 13.3 6.7 0.46 0.0
1923 10.0 2.2 0.38 0.0
1922 19.4 4.4 0.00 0.0
1921 18.3 5.0 0.00 0.0
1920 13.3 2.8 0.00 0.0
1919 20.0 6.1 0.05 0.0
1918 10.6 3.9 0.51 0.0
1917 15.0 5.6 0.25 0.0
1916 12.8 4.4 0.00 0.0
1915 25.0 6.1 0.00 0.0
1914 15.0 7.2 0.00 0.0
1913 20.0 0.6 0.00 0.0
1912 22.2 16.7 0.76 0.0
1911 26.7 15.0 0.00 0.0
1910 12.2 3.3 0.00 0.0
1909 16.1 4.4 0.00 0.0
1908 18.9 12.2 1.02 0.0
1907 11.7 -2.8 0.10 0.0
1906 15.0 3.9 0.81 0.0
1905 20.6 6.7 0.00 0.0
1904 18.3 1.7 0.00 0.0
1903 29.4 7.2 0.00 0.0
1902 18.3 1.1 0.00 0.0
1901 17.8 8.9 0.28 0.0
1900 18.9 1.1 0.00 0.0
1899 n/a n/a n/a n/a
1898 15.6 8.9 0.20 0.0
1897 16.7 11.7 0.76 0.0
1896 20.0 8.9 0.00 0.0
1895 19.4 3.3 0.18 0.0
1894 20.6 2.2 0.00 0.0
1893 31.1 11.7 0.00 0.0
1892 13.9 5.0 0.71 0.0
1891 21.1 4.4 0.00 0.0
1890 13.3 1.7 0.00 0.0
What's the all-time high for Ottawa on 5/12?
For the date of May 12, the highest temperature ever reached in Ottawa history is 31.1 °C which happened in 1893.
Highest Temperatures in Ottawa on May 12
Rank Temperature Year
1 31.1 °C 1893
2 30.5 °C 2022
3 29.4 °C 1903
4 26.8 °C 1992
5 26.7 °C 1911
5 26.7 °C 1956
7 26.5 °C 2016
7 26.5 °C 2004
7 26.5 °C 2023
10 26.2 °C 1985
10 26.2 °C 1991
What's the all-time low for Ottawa on 5/12?
For the date of May 12, the lowest temperature ever reached in Ottawa history is -2.8 °C which happened in 1907.
Lowest Temperatures in Ottawa on May 12
Rank Temperature Year
1 -2.8 °C 1907
2 -2.2 °C 1940
3 -1.6 °C 2005
4 -1.1 °C 1939
5 0.0 °C 1945
6 0.5 °C 2018
7 0.6 °C 1913
7 0.6 °C 1934
9 1.1 °C 1900
9 1.1 °C 1969
9 1.1 °C 1928
9 1.1 °C 1902
Lowest High Temperatures in Ottawa on May 12
Rank Temperature Year
1 9.4 °C 1996
2 10.0 °C 1923
2 10.0 °C 1938
4 10.4 °C 2005
5 10.6 °C 1918
6 11.1 °C 1942
6 11.1 °C 1939
8 11.3 °C 2001
9 11.5 °C 2002
10 11.7 °C 1907
10 11.7 °C 1969
10 11.7 °C 1966
10 11.7 °C 1952
10 11.7 °C 1945
10 11.7 °C 1976
What's the most it has ever rained in Ottawa on 5/12?
For the date of May 12, the most precipitation ever recorded in Ottawa history is 2.79 cm which happened in 1974.
All-Time Most Precipitation in Ottawa on May 12
Rank Precipitation Year
1 2.79 cm 1974
2 2.57 cm 2006
3 2.00 cm 1979
4 1.93 cm 1952
5 1.68 cm 1960
6 1.52 cm 1929
7 1.27 cm 1942
8 1.02 cm 1908
9 0.94 cm 1989
10 0.81 cm 1966
10 0.81 cm 1906
All-Time Most Snow in Ottawa on May 12
Rank Precipitation Year
1 0.4 cm 1996
Weather Station Details
Years Station Coordinates
1889–2024 Ottawa CDA location