Earliest and Latest Days of 30° C in Sioux Lookout

This is a list of the earliest and latest days in the year with a high temperature of at least 30 °C in Sioux Lookout, Ontario history. It is based on NOAA data from the years 1914–2024.

Also see:

Earliest 30 degree day in Sioux Lookout?

The earliest in the year that Sioux Lookout, Ontario had a high temperature of at least 30 °C is April 30 which happened in 1952.

Latest 30 degree day in Sioux Lookout?

The latest in the year that Sioux Lookout, Ontario had a high temperature of at least 30 °C is September 18 which happened in 1989.

Earliest Days ≥ 30 °C

Date	Year	Temperature
April 30	1952	30.6 °C
May 7	1953	30.6 °C
May 8	1953	30.0 °C
May 13	1977	30.6 °C
May 14	1977	30.4 °C
May 18	1972	30.6 °C
May 18	1941	30.6 °C
May 19	1941	31.1 °C
May 20	1992	31.9 °C
May 21	1992	30.9 °C
May 21	1964	32.8 °C
May 22	1980	33.1 °C
May 23	1980	31.3 °C
May 24	1972	30.6 °C
May 25	2010	30.7 °C
May 25	1919	31.7 °C
May 26	1972	30.6 °C
May 26	1919	30.6 °C
May 27	1986	30.8 °C
May 27	1969	30.0 °C
May 27	1919	30.0 °C

Latest Days ≥ 30 °C

Date	Year	Temperature
September 18	1989	30.2 °C
September 13	1952	30.6 °C
September 11	2005	30.9 °C
September 11	1931	31.7 °C
September 8	2011	30.7 °C
September 8	1931	31.1 °C
September 7	1976	35.0 °C
September 6	1976	30.6 °C
September 6	1945	30.0 °C
September 6	1940	30.0 °C
September 4	1948	31.7 °C
September 3	2023	31.1 °C
September 2	1991	30.1 °C
September 2	1983	31.6 °C
September 2	1971	30.0 °C
September 1	2008	31.0 °C
September 1	1983	30.5 °C
August 31	2008	32.2 °C
August 31	1996	30.1 °C
August 31	1953	31.1 °C