Number of Days of 20 °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 20 degrees Celsius in St. Catharines, Ontario, between 1882 and 2024.

Also see:

Which year had the most 20° days?

Based on NOAA records, the year 1955 holds the record for the most 20 °C days in St. Catharines history. There were 158 days with a high temperature of at least 20 degrees that year.

How many so far this year (2024)?

It has not reached 20 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 20° C was October 27, 2023.

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

Year	Rank	Days >= 20 °C
2024	107	0
2023	60	122
2022	56	123
2021	23	135
2020	72	117
2019	87	108
2018	56	123
2017	45	129
2016	39	131
2015	71	118
2014	86	109
2013	87	108
2012	43	130
2011	83	112
2010	99	65
2009	93	100
2008	91	107
2007	29	134
2006	103	20
2005	45	129
2004	72	117
2003	92	101
2002	72	117
2001	60	122
2000	81	113
1999	72	117
1998	87	108
1997	96	85
1996	97	78
1995	95	91
1994	29	134
1993	67	120
1992	80	114
1991	20	137
1990	23	135
1989	33	133
1988	53	125
1987	29	134
1986	50	126
1985	17	138
1984	105	2
1983	72	117
1982	49	128
1981	63	121
1980	53	125
1979	43	130
1978	72	117
1977	39	131
1976	84	110
1975	94	99
1974	36	132
1973	60	122
1972	53	125
1971	23	135
1970	22	136
1969	84	110
1968	50	126
1967	72	117
1966	67	120
1965	56	123
1964	101	52
1963	107	0
1962	107	0
1961	107	0
1960	107	0
1959	107	0
1958	107	0
1957	107	0
1956	39	131
1955	1	158
1954	36	132
1953	17	138
1952	12	144
1951	14	140
1950	9	145
1949	7	148
1948	23	135
1947	9	145
1946	3	153
1945	23	135
1944	33	133
1943	45	129
1942	36	132
1941	4	152
1940	79	115
1939	17	138
1938	12	144
1937	63	121
1936	14	140
1935	70	119
1934	29	134
1933	23	135
1932	33	133
1931	9	145
1930	14	140
1929	81	113
1928	56	123
1927	45	129
1926	63	121
1925	67	120
1924	87	108
1923	39	131
1922	5	151
1921	2	157
1920	7	148
1919	20	137
1918	98	75
1917	107	0
1916	107	0
1915	5	151
1914	107	0
1913	102	49
1912	100	63
1911	104	4
1910	107	0
1909	107	0
1908	107	0
1907	107	0
1906	107	0
1905	107	0
1904	107	0
1903	50	126
1902	63	121
1901	106	1
1900	107	0
1899	107	0
1898	107	0
1897	107	0
1896	107	0
1895	107	0
1894	107	0
1893	107	0
1892	107	0
1891	107	0
1890	107	0
1889	107	0
1888	107	0
1887	107	0
1886	107	0
1885	107	0
1884	107	0
1883	107	0
1882	107	0

Weather Station Details

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