Colorado December Weather

Colorado weather averages and all-time records in the month of December from 1991–2020 based on data made available by the NOAA.

State:

Month:

Statewide December Averages
High temperature	38.7 °F
Low temperature	14.2 °F
Precipitation	1.1 inches

Colorado Cities

December weather averages for various places in Colorado, from 1991–2020.

City	Average (°F)		Record (°F)		Monthly (inches)
City	High	Low	High	Low	Precipitation	Snow
Alamosa	35.4	0.3	63	-42	0.3	4.6
Aspen	33.1	8.2	62	-23	1.0	n/a
Bailey	37.0	9.1	67	-33	0.6	9.4
Boulder	46.2	21.7	76	-24	0.8	12.8
Burlington	44.1	18.3	81	-22	0.5	5.6
Canon City	49.2	20.2	82	-25	0.5	6.2
Castle Rock	46.0	17.2	82	-29	0.6	8.3
Climax	25.7	2.8	52	-33	2.0	36.4
Colorado Springs	43.9	18.1	77	-24	0.2	4.3
Cortez	43.2	17.1	65	-22	0.9	6.8
Crested Butte	27.1	-4.0	60	-39	2.3	34.3
Denver	43.9	18.1	79	-25	0.4	8.8
Durango	39.4	13.3	64	-21	1.1	n/a
Fort Collins	44.0	18.3	76	-35	0.5	7.5
Fort Morgan	41.4	13.4	84	-30	0.3	4.9
Glenwood Springs	37.3	15.2	70	-22	1.1	11.0
Grand Junction	38.4	18.4	66	-21	0.6	5.2
Great Sand Dunes National Park	34.4	11.6	61	-19	0.5	7.3
Greeley	42.8	17.8	76	-37	0.5	6.2
Gunnison	28.4	-2.3	62	-47	1.0	9.8
La Junta	46.1	18.2	81	-21	0.2	n/a
Lamar	45.6	14.7	82	-23	0.5	5.6
Las Animas	48.0	16.1	88	-32	0.4	3.9
Leadville	30.9	4.7	56	-31	0.8	16.6
Mesa Verde National Park	40.1	19.4	65	-15	1.5	13.9
Monte Vista	35.1	1.6	61	-29	0.4	4.9
Montrose	39.4	16.8	68	-21	0.6	6.3
Pueblo	47.5	14.6	82	-28	0.3	4.5
Steamboat Springs	29.9	5.3	64	-44	2.0	33.5
Telluride	36.8	3.6	60	-31	1.2	18.9
Trinidad	49.3	20.0	82	-26	0.6	9.1
Vail	28.2	7.2	51	-22	1.7	28.7