Average Temperatures for Colorado in December
Average temperatures for December at cities, towns and parks throughout Colorado are listed below in degrees Fahrenheit and Celsius.
You can jump to a separate table for Western Colorado and Eastern Colorado.
The tables give the normals for maximum and minimum temperatures based on weather data collected from 1991 to 2020 by the US National Centers for Environmental Information.
Western Colorado
| High °F | Low °F | Place | High °C | Low °C |
|---|---|---|---|---|
| 37 | 2 | Alamosa | 3 | -17 |
| 32 | 10 | Aspen | 0 | -12 |
| 27 | 3 | Climax | -3 | -16 |
| 39 | 22 | Colorado National Monument | 4 | -6 |
| 43 | 18 | Cortez | 6 | -8 |
| 27 | -4 | Crested Butte | -3 | -20 |
| 31 | 14 | Dinosaur National Monument | 0 | -10 |
| 40 | 13 | Durango | 4 | -10 |
| 36 | 15 | Glenwood Springs | 2 | -9 |
| 39 | 18 | Grand Junction | 4 | -8 |
| 29 | -3 | Gunnison | -2 | -19 |
| 29 | 5 | Leadville | -1 | -15 |
| 40 | 20 | Mesa Verde National Park | 4 | -6 |
| 35 | 16 | Ouray | 2 | -9 |
| 34 | -5 | Silverton | 1 | -20 |
| 30 | 6 | Steamboat Springs | -1 | -14 |
| 28 | -4 | Taylor Park Reservoir | -2 | -20 |
| 36 | 2 | Telluride | 2 | -17 |
| 28 | 7 | Vail | -2 | -14 |
Front Range & Eastern Colorado
| High °F | Low °F | Place | High °C | Low °C |
|---|---|---|---|---|
| 46 | 21 | Boulder | 8 | -6 |
| 44 | 18 | Burlington | 7 | -8 |
| 49 | 19 | Canon City | 9 | -7 |
| 45 | 19 | Colorado Springs | 7 | -7 |
| 46 | 18 | Denver | 8 | -8 |
| 36 | 16 | Estes Park | 2 | -9 |
| 39 | 5 | Florissant Fossil Beds Monument | 4 | -15 |
| 44 | 18 | Fort Collins | 7 | -8 |
| 34 | 12 | Great Sand Dunes National Monument | 1 | -11 |
| 43 | 18 | Greeley | 6 | -8 |
| 45 | 20 | Lakewood | 7 | -7 |
| 48 | 16 | Pueblo | 9 | -9 |
| 42 | 16 | Sterling | 5 | -9 |
| 49 | 22 | Trinidad | 9 | -5 |
Reference
NOAA National Centers for Environmental Information (NCEI). Climate Normals.