Highest Temperatures in Sioux Lookout History

This is a list of the 20 highest temperatures ever recorded in Sioux Lookout, Ontario history from 1914–2024 based on data from the NOAA.

• Highest temperatures by year
• Lowest temperatures all-time
• Change city

Rank	Temperature	Date
1	39.4 °C	July 11, 1936
1	39.4 °C	June 29, 1931
3	38.9 °C	July 12, 1936
4	37.8 °C	June 17, 1995
4	37.8 °C	June 30, 1931
6	37.7 °C	June 18, 1995
7	37.2 °C	July 26, 1930
8	36.7 °C	June 19, 1933
9	36.1 °C	July 30, 1975
9	36.1 °C	July 1, 1921
11	35.8 °C	July 17, 2005
12	35.7 °C	July 15, 1983
13	35.6 °C	July 29, 1975
13	35.6 °C	August 22, 1947
13	35.6 °C	July 9, 1936
13	35.6 °C	July 8, 1936
13	35.6 °C	July 26, 1929
18	35.3 °C	July 24, 2007
19	35.0 °C	September 7, 1976
19	35.0 °C	June 11, 1956
19	35.0 °C	August 8, 1949
19	35.0 °C	August 7, 1949
19	35.0 °C	June 26, 1941
19	35.0 °C	July 22, 1940
19	35.0 °C	July 13, 1936
19	35.0 °C	July 7, 1936
19	35.0 °C	June 18, 1933
19	35.0 °C	June 30, 1921
19	35.0 °C	June 16, 1919
19	35.0 °C	July 29, 1916