Ottawa October 15 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of October 15.
October 15 All-Time Records
1889–2024
Highest temperature 29.4 °C 1897
Lowest temperature -5.0 °C 2009
Lowest daily high 4.0 °C 1978
Highest daily low 16.8 °C 2014
Most precipitation 4.83 cm 1955
Most snow none -
October 15 Average Weather
1991–2020 1
Average high 13.7 °C
Average low 4.7 °C
Chance precipitation 47.0%
Chance snow 1.1%
Ottawa October 15 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 12.5 6.0 0.06 0.0
2022 18.0 3.0 0.00 0.0
2021 22.0 15.5 4.20 0.0
2020 17.5 7.5 0.94 0.0
2019 15.5 3.0 0.00 0.0
2018 12.0 3.5 0.30 0.0
2017 22.0 13.5 0.70 0.0
2016 18.5 1.0 0.00 0.0
2015 15.4 0.5 0.72 0.0
2014 21.8 16.8 0.22 0.0
2013 15.3 8.3 0.03 0.0
2012 17.0 6.0 0.00 0.0
2011 15.2 10.5 0.55 0.0
2010 11.0 8.1 0.17 0.0
2009 5.3 -5.0 0.00 0.0
2008 16.5 2.2 0.16 0.0
2007 11.3 5.4 0.00 0.0
2006 11.2 1.7 0.00 0.0
2005 15.6 10.5 0.26 0.0
2004 15.7 8.6 2.59 0.0
2003 11.1 8.2 1.80 0.0
2002 14.1 -0.9 0.05 0.0
2001 17.0 9.7 0.00 0.0
2000 11.5 7.7 0.00 0.0
1999 13.2 -0.2 0.00 0.0
1998 10.2 7.1 0.04 0.0
1997 14.5 3.3 0.00 0.0
1996 7.4 -2.3 0.06 0.0
1995 13.3 8.4 0.04 0.0
1994 14.2 -1.4 0.00 0.0
1993 15.3 -2.4 0.00 0.0
1992 11.0 6.3 0.00 0.0
1991 12.5 4.0 3.28 0.0
1990 15.4 6.3 0.05 0.0
1989 16.3 4.4 0.88 0.0
1988 14.4 4.1 0.00 0.0
1987 17.4 1.8 0.00 0.0
1986 9.9 3.5 0.00 0.0
1985 14.5 9.1 0.20 0.0
1984 20.2 6.4 0.00 0.0
1983 9.0 5.0 0.00 0.0
1982 12.0 6.0 0.00 0.0
1981 14.5 2.0 0.58 0.0
1980 8.0 -4.0 0.00 0.0
1979 8.0 1.0 0.04 0.0
1978 4.0 0.5 0.00 0.0
1977 12.0 4.5 0.00 0.0
1976 16.7 1.1 0.00 0.0
1975 8.3 6.1 0.84 0.0
1974 10.0 7.2 0.00 0.0
1973 15.0 6.1 0.13 0.0
1972 5.6 0.0 0.00 0.0
1971 20.0 10.0 0.00 0.0
1970 10.0 7.8 0.00 0.0
1969 12.8 3.9 0.00 0.0
1968 24.4 10.6 0.00 0.0
1967 15.0 8.3 0.76 0.0
1966 20.6 7.2 1.09 0.0
1965 17.2 3.9 0.79 0.0
1964 23.9 3.3 0.00 0.0
1963 24.4 6.7 0.00 0.0
1962 10.6 2.8 0.05 0.0
1961 5.0 -0.6 0.00 0.0
1960 14.4 8.3 0.00 0.0
1959 10.0 -1.1 0.03 0.0
1958 13.9 5.0 0.10 0.0
1957 20.6 2.8 0.00 0.0
1956 25.6 6.1 0.00 0.0
1955 11.1 8.3 4.83 0.0
1954 24.4 11.1 0.13 0.0
1953 18.3 5.0 0.00 0.0
1952 7.2 5.0 0.05 0.0
1951 18.9 1.7 0.00 0.0
1950 10.0 -3.9 0.00 0.0
1949 16.7 7.8 0.00 0.0
1948 15.0 1.7 0.00 0.0
1947 23.3 5.0 0.00 0.0
1946 17.2 3.9 0.00 0.0
1945 7.2 1.1 0.66 0.0
1944 6.1 -0.6 0.00 0.0
1943 15.6 2.8 1.09 0.0
1942 17.8 3.3 0.00 0.0
1941 17.2 3.3 0.08 0.0
1940 7.8 3.3 0.13 0.0
1939 7.2 -2.2 0.00 0.0
1938 21.1 5.0 0.00 0.0
1937 5.6 -1.1 0.00 0.0
1936 10.0 1.1 0.18 0.0
1935 11.1 5.6 0.00 0.0
1934 10.0 2.8 0.00 0.0
1933 18.9 0.0 0.00 0.0
1932 15.6 -1.1 0.00 0.0
1931 9.4 7.2 0.76 0.0
1930 17.2 9.4 0.00 0.0
1929 16.7 -2.2 0.00 0.0
1928 16.7 -0.6 0.00 0.0
1927 12.2 -3.3 0.00 0.0
1926 10.6 3.9 0.15 0.0
1925 13.3 5.0 n/a 0.0
1924 18.3 2.8 0.00 0.0
1923 16.7 2.8 0.00 0.0
1922 13.9 8.3 0.10 0.0
1921 19.4 4.4 0.00 0.0
1920 14.4 7.8 0.00 0.0
1919 17.2 7.8 0.00 0.0
1918 7.8 -0.6 0.00 0.0
1917 15.0 6.7 0.00 0.0
1916 16.7 3.3 0.23 0.0
1915 16.1 7.8 0.00 0.0
1914 15.0 2.2 0.15 0.0
1913 14.4 3.3 0.00 0.0
1912 11.7 5.6 0.00 0.0
1911 15.6 2.8 0.00 0.0
1910 7.8 3.9 0.00 0.0
1909 10.0 1.1 0.89 0.0
1908 24.4 6.7 0.00 0.0
1907 12.8 2.8 0.00 0.0
1906 22.8 2.8 0.00 0.0
1905 21.1 2.8 0.00 0.0
1904 11.1 -3.3 0.00 0.0
1903 15.6 1.7 0.00 0.0
1902 8.9 0.6 0.10 0.0
1901 15.6 3.9 0.00 0.0
1900 21.1 6.7 0.00 0.0
1899 17.8 6.1 0.00 0.0
1898 5.6 2.8 1.68 0.0
1897 29.4 13.3 0.00 0.0
1896 17.8 0.0 0.00 0.0
1895 10.0 1.1 0.00 0.0
1894 5.6 1.1 0.00 0.0
1893 7.8 3.9 0.66 0.0
1892 19.4 6.7 0.00 0.0
1891 13.3 5.0 0.23 0.0
1890 13.9 3.9 0.00 0.0
What's the all-time high for Ottawa on 10/15?
For the date of Oct 15, the highest temperature ever reached in Ottawa history is 29.4 °C which happened in 1897.
Highest Temperatures in Ottawa on October 15
Rank Temperature Year
1 29.4 °C 1897
2 25.6 °C 1956
3 24.4 °C 1908
3 24.4 °C 1954
3 24.4 °C 1968
3 24.4 °C 1963
7 23.9 °C 1964
8 23.3 °C 1947
9 22.8 °C 1906
10 22.0 °C 2017
10 22.0 °C 2021
What's the all-time low for Ottawa on 10/15?
For the date of Oct 15, the lowest temperature ever reached in Ottawa history is -5.0 °C which happened in 2009.
Lowest Temperatures in Ottawa on October 15
Rank Temperature Year
1 -5.0 °C 2009
2 -4.0 °C 1980
3 -3.9 °C 1950
4 -3.3 °C 1904
4 -3.3 °C 1927
6 -2.4 °C 1993
7 -2.3 °C 1996
8 -2.2 °C 1939
8 -2.2 °C 1929
10 -1.4 °C 1994
Lowest High Temperatures in Ottawa on October 15
Rank Temperature Year
1 4.0 °C 1978
2 5.0 °C 1961
3 5.3 °C 2009
4 5.6 °C 1894
4 5.6 °C 1898
4 5.6 °C 1937
4 5.6 °C 1972
8 6.1 °C 1944
9 7.2 °C 1952
9 7.2 °C 1939
9 7.2 °C 1945
What's the most it has ever rained in Ottawa on 10/15?
For the date of Oct 15, the most precipitation ever recorded in Ottawa history is 4.83 cm which happened in 1955.
All-Time Most Precipitation in Ottawa on October 15
Rank Precipitation Year
1 4.83 cm 1955
2 4.20 cm 2021
3 3.28 cm 1991
4 2.59 cm 2004
5 1.80 cm 2003
6 1.68 cm 1898
7 1.09 cm 1943
7 1.09 cm 1966
9 0.94 cm 2020
10 0.89 cm 1909
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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