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West Yellowstone December Weather

Averages and records for weather in West Yellowstone, Montana in the month of December.

Typical West Yellowstone December Weather 1991–2020
Average daily high	28.6 °F
Average daily low	4.6 °F
Average monthly precipitation	2.9 inches
Daily chance of precipitation	42.8%

West Yellowstone December Weather Records 1924–2024
Highest temperature	54 °F	December 3, 1946
Lowest temperature	-59 °F	December 19, 1924
Highest daily low	37 °F	December 2, 2021
Lowest daily high	-16 °F	December 21, 1990
Hottest average high temperature	35.5 °F	1939
Coldest average high temperature	17.6 °F	1983
Most daily precipitation	1.6 inches	December 3, 1941
Most monthly precipitation	6.6 inches	1994

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

Day	Average (°F)		Record (°F)
Day	High	Low	High	Low
December 1	31.9	8.2	47	-28
December 2	31.5	7.8	46	-32
December 3	31.2	7.3	54	-32
December 4	30.8	6.8	43	-36
December 5	30.4	6.6	50	-46
December 6	30.1	6.5	46	-35
December 7	29.9	6.2	46	-41
December 8	29.6	5.9	48	-42
December 9	29.4	5.5	46	-40
December 10	29.3	5.3	50	-48
December 11	29.1	5.1	45	-45
December 12	28.9	5.0	52	-36
December 13	28.6	4.8	45	-37
December 14	28.5	4.7	45	-49
December 15	28.4	4.6	42	-36
December 16	28.2	4.3	44	-39
December 17	28.1	4.1	42	-52
December 18	27.9	3.7	45	-50
December 19	27.7	3.5	43	-59
December 20	27.7	3.5	47	-57
December 21	27.6	3.4	43	-46
December 22	27.5	3.2	44	-49
December 23	27.4	3.2	44	-45
December 24	27.4	3.3	42	-48
December 25	27.4	3.6	45	-49
December 26	27.5	3.8	49	-35
December 27	27.4	3.8	44	-32
December 28	27.4	3.7	40	-36
December 29	27.4	3.6	41	-46
December 30	27.4	3.5	39	-50
December 31	27.5	3.7	40	-49

Weather Station Details

Years	Station	Coordinates
1997–2024	West Yellowstone	location
1924–1996	West Yellowstone	location