Number of Days of 35 °C in London by Year

This page contains a list of the number of days in each year that the high temperature equaled or exceeded 35 degrees Celsius in London, Ontario, between 1883 and 2024.

Also see:

Which year had the most 35° days?

Based on NOAA records, the year 1916 holds the record for the most 35 °C days in London history. There were 9 days with a high temperature of at least 35 degrees that year.

How many so far this year (2024)?

It has not reached 35 degrees Celsius in London so far in 2024. As of April 27, the highest temperature this year is 73 °F.

The last time it reached at least 35° C was July 17, 2012.

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

Year	Rank	Days >= 35 °C
2024	43	0
2023	43	0
2022	43	0
2021	43	0
2020	43	0
2019	43	0
2018	43	0
2017	43	0
2016	43	0
2015	43	0
2014	43	0
2013	43	0
2012	27	1
2011	27	1
2010	43	0
2009	43	0
2008	43	0
2007	43	0
2006	43	0
2005	43	0
2004	43	0
2003	43	0
2002	43	0
2001	27	1
2000	43	0
1999	27	1
1998	43	0
1997	43	0
1996	43	0
1995	27	1
1994	43	0
1993	43	0
1992	43	0
1991	43	0
1990	43	0
1989	43	0
1988	5	6
1987	27	1
1986	43	0
1985	43	0
1984	43	0
1983	43	0
1982	43	0
1981	43	0
1980	43	0
1979	43	0
1978	43	0
1977	43	0
1976	43	0
1975	43	0
1974	43	0
1973	43	0
1972	43	0
1971	27	1
1970	43	0
1969	43	0
1968	43	0
1967	43	0
1966	43	0
1965	43	0
1964	27	1
1963	43	0
1962	43	0
1961	43	0
1960	43	0
1959	43	0
1958	43	0
1957	43	0
1956	43	0
1955	11	3
1954	43	0
1953	27	1
1952	17	2
1951	43	0
1950	43	0
1949	27	1
1948	27	1
1947	43	0
1946	43	0
1945	43	0
1944	17	2
1943	43	0
1942	43	0
1941	17	2
1940	43	0
1939	43	0
1938	43	0
1937	43	0
1936	3	7
1935	43	0
1934	27	1
1933	11	3
1932	43	0
1931	6	5
1930	11	3
1929	43	0
1928	43	0
1927	11	3
1926	17	2
1925	17	2
1924	43	0
1923	8	4
1922	17	2
1921	8	4
1920	43	0
1919	6	5
1918	3	7
1917	8	4
1916	1	9
1915	43	0
1914	27	1
1913	43	0
1912	43	0
1911	1	9
1910	17	2
1909	43	0
1908	27	1
1907	43	0
1906	43	0
1905	43	0
1904	43	0
1903	43	0
1902	43	0
1901	27	1
1900	11	3
1899	17	2
1898	17	2
1897	17	2
1896	43	0
1895	43	0
1894	11	3
1893	43	0
1892	43	0
1891	43	0
1890	43	0
1889	43	0
1888	43	0
1887	27	1
1886	43	0
1885	43	0
1884	43	0
1883	43	0

Weather Station Details

Years	Station	Coordinates
2002–2024	London CS	location
1941–2002	London International Airport	location
1932–1940	London Lambeth A	location
1883–1931	London South	location