Earliest and Latest Days of 20° C in Sioux Lookout

This is a list of the earliest and latest days in the year with a high temperature of at least 20 °C in Sioux Lookout, Ontario history. It is based on NOAA data from the years 1914–2024.

Also see:

Earliest 20 degree day in Sioux Lookout?

The earliest in the year that Sioux Lookout, Ontario had a high temperature of at least 20 °C is March 18 which happened in 2012.

Latest 20 degree day in Sioux Lookout?

The latest in the year that Sioux Lookout, Ontario had a high temperature of at least 20 °C is October 27 which happened in 1944.

Earliest Days ≥ 20 °C

Date	Year	Temperature
March 18	2012	23.4 °C
March 19	2012	21.9 °C
March 22	2012	21.2 °C
April 4	1930	20.0 °C
April 6	1991	25.2 °C
April 7	1987	20.4 °C
April 8	1987	22.9 °C
April 9	1987	24.5 °C
April 9	1930	22.2 °C
April 10	1955	22.8 °C
April 10	1930	21.1 °C
April 11	2006	21.5 °C
April 11	1955	22.8 °C
April 12	1941	21.1 °C
April 13	1918	21.7 °C
April 14	1976	21.7 °C
April 14	1969	20.0 °C
April 14	1958	23.3 °C
April 14	1918	21.7 °C
April 15	1963	21.1 °C

Latest Days ≥ 20 °C

Date	Year	Temperature
October 27	1944	20.0 °C
October 26	1989	22.9 °C
October 25	1989	22.2 °C
October 23	1998	20.0 °C
October 23	1963	22.8 °C
October 22	1963	20.0 °C
October 22	1953	20.6 °C
October 21	2017	22.7 °C
October 21	1958	21.7 °C
October 21	1953	25.0 °C
October 21	1914	20.0 °C
October 20	1958	20.6 °C
October 20	1953	25.0 °C
October 20	1914	20.0 °C
October 19	2021	20.6 °C
October 19	2000	20.6 °C
October 19	1956	21.1 °C
October 19	1953	21.7 °C
October 19	1927	20.0 °C
October 19	1915	20.6 °C