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Yellowstone National Park December Weather

Averages and records for weather in Yellowstone National Park, Wyoming in the month of December.

Typical Yellowstone National Park December Weather 1991–2020
Average daily high	26.7 °F
Average daily low	0.9 °F
Average monthly precipitation	2.7 inches
Average monthly snow	43.7 inches
Daily chance of precipitation	48.6%
Daily chance of snow	49.8%

Yellowstone National Park December Weather Records 1904–2024
Highest temperature	58 °F	December 2, 1911
Lowest temperature	-47 °F	December 30, 1978
Highest daily low	35 °F	December 9, 1939
Lowest daily high	-12 °F	December 22, 1990
Hottest average high temperature	34.2 °F	1939
Coldest average high temperature	17.9 °F	1990
Most daily precipitation	1.4 inches	December 14, 2003
Most monthly precipitation	8.1 inches	1996
Most daily snow	19.5 inches	December 16, 2016
Most monthly snow	113.1 inches	1996

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	30.2	4.3	48	-23
December 2	29.8	4.0	58	-24
December 3	29.5	3.6	50	-32
December 4	29.2	3.2	49	-36
December 5	28.8	2.8	53	-34
December 6	28.4	2.6	45	-37
December 7	28.2	2.4	46	-34
December 8	28.0	2.1	47	-35
December 9	27.7	1.8	51	-32
December 10	27.6	1.5	49	-21
December 11	27.4	1.4	50	-33
December 12	27.3	1.2	44	-31
December 13	27.1	1.1	51	-25
December 14	26.9	1.1	45	-28
December 15	26.8	1.1	39	-28
December 16	26.7	0.9	47	-25
December 17	26.6	0.6	44	-42
December 18	26.5	0.4	49	-30
December 19	26.4	0.2	45	-32
December 20	26.4	0.3	44	-45
December 21	26.4	0.3	44	-46
December 22	26.4	0.2	40	-46
December 23	26.3	0.2	41	-44
December 24	26.2	0.2	41	-41
December 25	26.2	0.3	38	-32
December 26	26.2	0.4	44	-32
December 27	26.3	0.5	43	-27
December 28	26.3	0.5	41	-28
December 29	26.2	0.4	43	-38
December 30	26.2	0.3	40	-47
December 31	26.3	0.3	46	-46

Weather Station Details

Years	Station	Coordinates
1904–2024	Old Faithful	location