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Sioux Lookout December Weather

Averages and records for weather in Sioux Lookout, Ontario in the month of December.

Typical Sioux Lookout December Weather 1991–2020
Average daily high	-8.7 °C
Average daily low	-17.3 °C
Average monthly precipitation	3.8 cm
Average monthly snow	38.4 cm
Daily chance of precipitation	48.2%
Daily chance of snow	49.8%

Sioux Lookout December Weather Records 1914–2024
Highest temperature	8.9 °C	December 1, 1962
Lowest temperature	-42.2 °C	December 18, 1919
Highest daily low	2.8 °C	December 3, 1951
Lowest daily high	-33.9 °C	December 28, 1917
Hottest average high temperature	-4.2 °C	1939
Coldest average high temperature	-18.7 °C	1924
Most daily precipitation	5.0 cm	December 3, 2015
Most monthly precipitation	11.8 cm	2022
Most daily snow	23.6 cm	December 31, 1965
Most monthly snow	95.0 cm	2004

Note: Daily averages are a moving average which includes 14 days before and after

Day	Average (°C)		Record (°C)
Day	High	Low	High	Low
December 1	-5.5	-13.9	8.9	-35.0
December 2	-5.8	-14.2	8.3	-38.3
December 3	-6.1	-14.6	8.9	-34.4
December 4	-6.4	-14.9	7.2	-40.0
December 5	-6.6	-15.2	5.4	-35.9
December 6	-6.8	-15.4	6.1	-34.4
December 7	-7.0	-15.6	5.8	-34.5
December 8	-7.2	-15.8	5.9	-36.1
December 9	-7.4	-16.0	4.0	-38.3
December 10	-7.6	-16.2	2.2	-37.2
December 11	-7.8	-16.4	4.4	-36.7
December 12	-7.9	-16.6	2.8	-36.7
December 13	-8.1	-16.9	1.7	-38.9
December 14	-8.3	-17.2	6.6	-41.1
December 15	-8.6	-17.4	8.5	-36.7
December 16	-8.8	-17.7	2.1	-37.8
December 17	-9.0	-17.9	2.2	-40.0
December 18	-9.2	-18.2	2.2	-42.2
December 19	-9.4	-18.4	1.7	-41.1
December 20	-9.5	-18.5	3.5	-39.4
December 21	-9.7	-18.7	3.5	-37.2
December 22	-9.8	-18.9	1.1	-35.0
December 23	-9.9	-19.0	5.7	-35.6
December 24	-10.0	-19.2	2.2	-39.7
December 25	-10.0	-19.2	4.7	-40.0
December 26	-10.1	-19.3	2.2	-41.7
December 27	-10.1	-19.3	2.6	-41.1
December 28	-10.2	-19.4	2.7	-41.7
December 29	-10.3	-19.6	1.8	-41.1
December 30	-10.5	-19.9	2.2	-40.0
December 31	-10.8	-20.2	0.4	-41.1

Weather Station Details

Years	Station	Coordinates
1938–2024	Sioux Lookout A	location
1933–1938	Sioux Lookout	location
1914–1932	Sioux Lookout	location