Highest Temperatures in St. Catharines by Year

Here is a list and chart of the hottest annual temperatures recorded in St. Catharines, Ontario for each year between 1902 and 2024.

Year	Temperature
2024	17.8 °C
2023	31.9 °C
2022	31.6 °C
2021	33.0 °C
2020	32.5 °C
2019	30.7 °C
2018	34.0 °C
2017	32.2 °C
2016	33.1 °C
2015	32.2 °C
2014	30.8 °C
2013	33.2 °C
2012	33.8 °C
2011	34.0 °C
2009	30.6 °C
2008	30.6 °C
2007	34.1 °C
2005	33.6 °C
2004	30.4 °C
2003	32.6 °C
2002	33.6 °C
2001	35.1 °C
2000	29.7 °C
1999	33.5 °C
1997	30.3 °C
1994	36.0 °C
1993	36.0 °C
1992	31.0 °C
1990	35.0 °C
1989	33.0 °C
1988	37.5 °C
1987	34.0 °C
1986	32.5 °C
1985	31.5 °C
1983	34.0 °C
1982	33.0 °C
1981	34.0 °C
1980	33.0 °C
1979	31.5 °C
1978	35.0 °C
1977	35.5 °C
1976	32.2 °C
1974	33.3 °C
1973	34.4 °C
1972	32.8 °C
1971	32.8 °C
1970	31.7 °C
1969	33.9 °C
1968	33.3 °C
1967	31.7 °C
1966	35.6 °C
1965	32.2 °C
1956	34.4 °C
1955	36.7 °C
1954	33.3 °C
1953	36.7 °C
1952	36.1 °C
1951	34.4 °C
1950	32.8 °C
1949	37.2 °C
1948	38.3 °C
1947	35.0 °C
1946	35.0 °C
1945	33.9 °C
1944	35.6 °C
1943	35.0 °C
1942	34.4 °C
1941	36.1 °C
1940	33.3 °C
1939	34.4 °C
1938	34.4 °C
1937	34.4 °C
1936	40.0 °C
1935	34.4 °C
1934	34.4 °C
1933	37.2 °C
1932	33.9 °C
1931	35.0 °C
1930	35.0 °C
1929	34.4 °C
1928	33.3 °C
1927	34.4 °C
1926	33.3 °C
1925	35.6 °C
1924	32.2 °C
1923	35.0 °C
1922	34.4 °C
1921	35.6 °C
1920	32.8 °C
1919	35.6 °C
1915	33.3 °C
1903	33.3 °C
1902	33.9 °C

Weather Station Details

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