Ottawa October 1 Weather Records

Daily averages and all-time records for weather in Ottawa, Ontario for the date of October 1.
October 1 All-Time Records
1889–2024
Highest temperature 27.8 °C 1922
Lowest temperature -3.3 °C 1947
Lowest daily high 2.2 °C 1946
Highest daily low 17.8 °C 1954
Most precipitation 2.39 cm 1920
Most snow none -
October 1 Average Weather
1991–2020 1
Average high 17.7 °C
Average low 7.5 °C
Chance precipitation 44.6%
Chance snow 0.1%
Ottawa October 1 Weather by Year
Year High (°C) Low (°C) Precip. (cm) Snow (cm)
2023 26.0 11.5 0.00 0.0
2022 19.0 5.0 0.00 0.0
2021 17.0 6.0 0.76 0.0
2020 19.0 9.5 0.06 0.0
2019 17.5 7.0 1.76 0.0
2018 14.0 6.5 0.66 0.0
2017 17.5 3.0 0.00 0.0
2016 17.5 11.5 0.14 0.0
2015 14.6 3.7 0.00 0.0
2014 19.2 11.0 0.00 0.0
2013 23.4 15.7 0.00 0.0
2012 20.3 11.0 0.00 0.0
2011 9.5 6.8 0.10 0.0
2010 17.1 12.3 0.00 0.0
2009 7.5 3.0 0.04 0.0
2008 13.5 9.2 0.04 0.0
2007 25.1 7.4 0.00 0.0
2006 14.4 9.3 0.17 0.0
2005 23.2 6.9 0.00 0.0
2004 19.5 5.7 0.00 0.0
2003 12.5 1.7 0.54 0.0
2002 26.4 13.0 0.00 0.0
2001 21.5 4.5 0.00 0.0
2000 23.1 8.3 0.00 0.0
1999 17.1 8.2 0.10 0.0
1998 11.3 7.0 0.04 0.0
1997 9.1 4.1 0.02 0.0
1996 23.1 6.0 0.12 0.0
1995 22.5 5.9 0.00 0.0
1994 15.0 1.1 0.04 0.0
1993 13.8 -1.7 0.78 0.0
1992 12.1 0.2 0.00 0.0
1991 18.5 6.9 0.10 0.0
1990 12.6 4.8 0.58 0.0
1989 21.8 3.6 0.18 0.0
1988 22.7 13.3 0.52 0.0
1987 11.8 6.5 0.22 0.0
1986 20.1 13.5 0.04 0.0
1985 17.4 14.5 0.49 0.0
1984 14.5 3.7 0.00 0.0
1983 21.5 8.0 0.00 0.0
1982 17.0 13.5 0.98 0.0
1981 5.5 -1.0 0.32 0.0
1980 22.5 6.5 0.20 0.0
1979 19.0 14.0 0.00 0.0
1978 19.5 12.5 0.02 0.0
1977 9.5 8.0 1.98 0.0
1976 19.4 4.4 0.00 0.0
1975 20.0 10.0 1.12 0.0
1974 7.2 -2.2 0.08 0.0
1973 21.1 2.2 0.00 0.0
1972 12.2 0.6 0.18 0.0
1971 25.6 10.6 0.00 0.0
1970 12.8 8.3 0.00 0.0
1969 15.6 6.1 0.00 0.0
1968 25.6 10.0 0.00 0.0
1967 12.8 3.9 0.00 0.0
1966 14.4 0.0 0.00 0.0
1965 22.2 11.1 0.05 0.0
1964 16.7 1.1 0.00 0.0
1963 19.4 -0.6 0.00 0.0
1962 17.8 8.9 0.00 0.0
1961 23.3 12.2 0.94 0.0
1960 11.1 2.2 0.00 0.0
1959 16.1 14.4 0.74 0.0
1958 12.2 7.8 0.00 0.0
1957 17.2 6.1 0.33 0.0
1956 12.2 4.4 0.00 0.0
1955 21.1 7.2 0.00 0.0
1954 21.1 17.8 0.03 0.0
1953 18.9 8.9 0.00 0.0
1952 22.8 5.0 1.57 0.0
1951 12.8 5.0 0.28 0.0
1950 26.1 10.0 0.00 0.0
1949 12.8 1.1 0.00 0.0
1948 23.3 14.4 1.14 0.0
1947 11.1 -3.3 0.00 0.0
1946 2.2 0.0 0.38 0.0
1945 17.2 3.3 2.13 0.0
1944 13.3 1.7 0.00 0.0
1943 15.6 7.8 2.36 0.0
1942 16.7 2.2 0.00 0.0
1941 16.1 5.0 0.05 0.0
1940 21.1 -1.1 0.00 0.0
1939 10.6 1.1 0.00 0.0
1938 12.8 3.3 0.00 0.0
1937 17.8 10.6 0.51 0.0
1936 12.2 6.1 0.13 0.0
1935 10.0 5.6 0.00 0.0
1934 12.2 -3.3 0.00 0.0
1933 18.9 11.7 0.38 0.0
1932 13.9 1.1 0.00 0.0
1931 20.0 11.1 0.23 0.0
1930 15.6 6.1 0.00 0.0
1929 14.4 3.3 0.00 0.0
1928 15.6 -1.1 0.00 0.0
1927 24.4 12.8 0.00 0.0
1926 15.0 0.6 n/a 0.0
1925 13.9 -2.2 0.00 0.0
1924 12.8 2.8 0.08 0.0
1923 15.6 6.1 0.00 0.0
1922 27.8 10.0 0.00 0.0
1921 17.8 7.2 0.00 0.0
1920 10.6 6.7 2.39 0.0
1919 11.7 2.8 0.00 0.0
1918 12.8 -2.2 0.00 0.0
1917 12.2 7.8 0.25 0.0
1916 15.6 -1.7 0.00 0.0
1915 16.1 3.3 0.00 0.0
1914 16.1 2.8 0.00 0.0
1913 18.9 2.2 0.00 0.0
1912 10.0 4.4 0.33 0.0
1911 9.4 2.2 0.08 0.0
1910 20.6 11.7 1.73 0.0
1909 10.6 5.0 0.05 0.0
1908 18.3 10.0 0.00 0.0
1907 13.3 1.1 0.00 0.0
1906 16.7 -1.1 0.00 0.0
1905 24.4 9.4 0.00 0.0
1904 14.4 6.7 0.00 0.0
1903 21.1 10.0 1.02 0.0
1902 17.2 11.1 0.56 0.0
1901 18.3 3.3 0.00 0.0
1900 19.4 5.6 0.00 0.0
1899 4.4 0.0 0.00 0.0
1898 25.0 15.0 0.00 0.0
1897 21.1 13.3 0.00 0.0
1896 15.6 10.0 0.58 0.0
1895 11.7 2.2 0.00 0.0
1894 15.0 7.8 0.00 0.0
1893 17.2 2.8 0.00 0.0
1892 20.0 6.1 0.00 0.0
1891 20.0 2.2 0.00 0.0
1890 24.4 6.1 0.00 0.0
What's the all-time high for Ottawa on 10/1?
For the date of Oct 1, the highest temperature ever reached in Ottawa history is 27.8 °C which happened in 1922.
Highest Temperatures in Ottawa on October 1
Rank Temperature Year
1 27.8 °C 1922
2 26.4 °C 2002
3 26.1 °C 1950
4 26.0 °C 2023
5 25.6 °C 1968
5 25.6 °C 1971
7 25.1 °C 2007
8 25.0 °C 1898
9 24.4 °C 1890
9 24.4 °C 1927
9 24.4 °C 1905
What's the all-time low for Ottawa on 10/1?
For the date of Oct 1, the lowest temperature ever reached in Ottawa history is -3.3 °C which has happened 2 times, most recently in 1947.
Lowest Temperatures in Ottawa on October 1
Rank Temperature Year
1 -3.3 °C 1934
1 -3.3 °C 1947
3 -2.2 °C 1925
3 -2.2 °C 1974
3 -2.2 °C 1918
6 -1.7 °C 1916
6 -1.7 °C 1993
8 -1.1 °C 1928
8 -1.1 °C 1940
8 -1.1 °C 1906
Lowest High Temperatures in Ottawa on October 1
Rank Temperature Year
1 2.2 °C 1946
2 4.4 °C 1899
3 5.5 °C 1981
4 7.2 °C 1974
5 7.5 °C 2009
6 9.1 °C 1997
7 9.4 °C 1911
8 9.5 °C 2011
8 9.5 °C 1977
10 10.0 °C 1912
10 10.0 °C 1935
What's the most it has ever rained in Ottawa on 10/1?
For the date of Oct 1, the most precipitation ever recorded in Ottawa history is 2.39 cm which happened in 1920.
All-Time Most Precipitation in Ottawa on October 1
Rank Precipitation Year
1 2.39 cm 1920
2 2.36 cm 1943
3 2.13 cm 1945
4 1.98 cm 1977
5 1.76 cm 2019
6 1.73 cm 1910
7 1.57 cm 1952
8 1.14 cm 1948
9 1.12 cm 1975
10 1.02 cm 1903
Weather Station Details
Years Station Coordinates
1889–2024 Ottawa CDA location