Earliest and Latest Days of 20° C in Kingston

This is a list of the earliest and latest days in the year with a high temperature of at least 20 °C in Kingston, Ontario history. It is based on NOAA data from the years 1872–2024.

Also see:

Earliest 20 degree day in Kingston?

The earliest in the year that Kingston, Ontario had a high temperature of at least 20 °C is March 20 which happened in 2012.

Latest 20 degree day in Kingston?

The latest in the year that Kingston, Ontario had a high temperature of at least 20 °C is November 2 which happened in 1971.

Earliest Days ≥ 20 °C

Date	Year	Temperature
March 20	2012	21.2 °C
March 28	1998	21.0 °C
March 29	1946	20.6 °C
March 30	1998	22.0 °C
March 31	2006	21.0 °C
March 31	1998	24.0 °C
April 2	2010	20.8 °C
April 3	2010	21.7 °C
April 5	1910	21.1 °C
April 6	1988	20.7 °C
April 6	1928	22.8 °C
April 7	1991	20.0 °C
April 7	1921	21.1 °C
April 8	2021	22.8 °C
April 10	2021	21.5 °C
April 11	1987	20.1 °C
April 13	1977	20.5 °C
April 13	1898	20.6 °C
April 14	1998	22.0 °C
April 14	1974	20.6 °C
April 14	1946	21.1 °C

Latest Days ≥ 20 °C

Date	Year	Temperature
November 2	1971	20.6 °C
November 1	1956	20.6 °C
October 31	1946	20.0 °C
October 31	1919	20.0 °C
October 29	1935	21.7 °C
October 28	1984	21.6 °C
October 28	1971	21.1 °C
October 28	1927	20.6 °C
October 27	1918	20.0 °C
October 24	2017	20.4 °C
October 23	1901	20.6 °C
October 22	1979	22.3 °C
October 22	1929	20.0 °C
October 21	2000	20.0 °C
October 21	1979	23.0 °C
October 21	1920	21.1 °C
October 21	1884	20.0 °C
October 20	2021	20.3 °C
October 20	1953	20.6 °C
October 20	1884	20.6 °C