Number of Days of 40 °C in St. Catharines by Year

This page contains a list of the number of days in each year that the high temperature equaled or exceeded 40 degrees Celsius in St. Catharines, Ontario, between 1882 and 2024.

Also see:

Which year had the most 40° days?

Based on NOAA records, the year 1936 holds the record for the most 40 °C days in St. Catharines history. There were 1 days with a high temperature of at least 40 degrees that year.

How many so far this year (2024)?

It has not reached 40 degrees Celsius in St. Catharines so far in 2024. As of April 26, the highest temperature this year is 64 °F.

The last time it reached at least 40° C was July 10, 1936.

Years marked with a gold background have more than 5% incomplete data
Click column headers to sort

Year	Rank	Days >= 40 °C
2024	2	0
2023	2	0
2022	2	0
2021	2	0
2020	2	0
2019	2	0
2018	2	0
2017	2	0
2016	2	0
2015	2	0
2014	2	0
2013	2	0
2012	2	0
2011	2	0
2010	2	0
2009	2	0
2008	2	0
2007	2	0
2006	2	0
2005	2	0
2004	2	0
2003	2	0
2002	2	0
2001	2	0
2000	2	0
1999	2	0
1998	2	0
1997	2	0
1996	2	0
1995	2	0
1994	2	0
1993	2	0
1992	2	0
1991	2	0
1990	2	0
1989	2	0
1988	2	0
1987	2	0
1986	2	0
1985	2	0
1984	2	0
1983	2	0
1982	2	0
1981	2	0
1980	2	0
1979	2	0
1978	2	0
1977	2	0
1976	2	0
1975	2	0
1974	2	0
1973	2	0
1972	2	0
1971	2	0
1970	2	0
1969	2	0
1968	2	0
1967	2	0
1966	2	0
1965	2	0
1964	2	0
1963	2	0
1962	2	0
1961	2	0
1960	2	0
1959	2	0
1958	2	0
1957	2	0
1956	2	0
1955	2	0
1954	2	0
1953	2	0
1952	2	0
1951	2	0
1950	2	0
1949	2	0
1948	2	0
1947	2	0
1946	2	0
1945	2	0
1944	2	0
1943	2	0
1942	2	0
1941	2	0
1940	2	0
1939	2	0
1938	2	0
1937	2	0
1936	1	1
1935	2	0
1934	2	0
1933	2	0
1932	2	0
1931	2	0
1930	2	0
1929	2	0
1928	2	0
1927	2	0
1926	2	0
1925	2	0
1924	2	0
1923	2	0
1922	2	0
1921	2	0
1920	2	0
1919	2	0
1918	2	0
1917	2	0
1916	2	0
1915	2	0
1914	2	0
1913	2	0
1912	2	0
1911	2	0
1910	2	0
1909	2	0
1908	2	0
1907	2	0
1906	2	0
1905	2	0
1904	2	0
1903	2	0
1902	2	0
1901	2	0
1900	2	0
1899	2	0
1898	2	0
1897	2	0
1896	2	0
1895	2	0
1894	2	0
1893	2	0
1892	2	0
1891	2	0
1890	2	0
1889	2	0
1888	2	0
1887	2	0
1886	2	0
1885	2	0
1884	2	0
1883	2	0
1882	2	0

Weather Station Details

Years	Station	Coordinates
1995–2024	Port Weller (AUT)	location
1882–1994	St Catherines	location