Average Temperatures for Colorado in December

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Average temperatures for December at cities, towns and parks throughout Colorado are listed below in degrees Fahrenheit and Celsius.

The tables give the normals for maximum and minimum monthly temperatures based on weather data collected from 1981 to 2010.

You can jump to a separate table for Western Colorado and Eastern Colorado.

Western Colorado

Average December temperatures
High °F Low °F Place High °C Low °C
35   1 Alamosa  2 -18
35 10 Aspen  2 -12
39   3 Browns Park Wildlife Refuge  4 -16
39 23 Colorado National Monument  4   -5
43 18 Cortez  6   -8
27  -4 Crested Butte -3 -20
34 13 Dinosaur National Monument  1 -11
39 14 Durango  4 -10
35 15 Glenwood Springs  2 -10
39 19 Grand Junction  4   -8
28  -2 Gunnison -2 -19
29   4 Leadville -2 -15
40 20 Mesa Verde National Park  4   -7
35 15 Ouray  1   -9
28   5 Steamboat Springs -2 -15
28  -3 Taylor Park Reservoir -3 -19
35   4 Telluride  2 -16
27   7 Vail -3 -14

Front Range & Eastern Colorado

Average daily temperatures in December
High °F Low °F Place High °C Low °C
45 21 Boulder  7   -6
42 17 Burlington  6   -9
48 19 Canon City  9   -7
42 18 Colorado Springs  6   -8
43 17 Denver  6   -9
39 17 Estes Park  4   -8
38   4 Florissant Fossil Beds Monument  3 -16
41 15 Fort Collins  5 -10
35 11 Great Sand Dunes Monument  2 -12
45 17 Greeley  7   -9
47 18 Lakewood  8   -8
46 14 Pueblo  8 -10
41 15 Sterling  5 -10
46 17 Trinidad  8   -8
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

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