Average Precipitation for Colorado in September

The tables below give monthly averages for rainfall plus snowfall during September at cities, towns and parks in Colorado.

Each place has a total for the amount of precipitation it usually receives this month. Most places also have information on the number of days with wet weather. This includes the days when precipitation amounts to 0.01 inches (0.25 millimetres) or more.

The precipitation totals are averages based on weather data collected from 1991 to 2020 for the US National Centers for Environmental Information.

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

Western Colorado

Average monthly precipitation in September
Days Place Inches Milli­metres
7 Alamosa 0.9 24
10 Aspen 1.9 48
10 Breckenridge 1.5 39
11 Climax 1.8 46
7 Colorado National Monument 1.3 33
7 CortezĀ  1.5 38
10 Crested Butte 2.0 50
6 Dinosaur National Monument 1.3 32
9 Durango 2.2 56
6 Glenwood Springs 1.6 41
7 Grand Junction 1.2 30
9 Gunnison 1.2 31
9 Leadville 1.1 29
8 Mesa Verde National Park 1.8 45
11 Ouray 2.4 61
11 Silverton 2.8 70
10 Steamboat Springs 2.3 59
8 Taylor Park Reservoir 1.6 41
11 Telluride 2.3 59
9 Vail 2.0 50

Front Range & Eastern Colorado

September averages for total rainfall plus snowfall
Days Place Inches Milli­metres
8 Boulder 2.1 53
4 Burlington 1.3 33
7 Canon City  1.2 30
7 Colorado Springs 1.4 34
6 Denver 1.5 38
9 Estes Park 1.7 42
7 Florissant Fossil Beds Monument 1.3 33
7 Fort Collins 1.4 36
7 Great Sand Dunes National Monument 1.3 33
6 Greeley 1.1 29
7 Lakewood 1.4 35
5 Pueblo 0.7 17
5 Sterling 1.6 41
6 Trinidad 1.3 32
Reference

NOAA National Centers for Environmental Information (NCEI). Climate Normals.

Colorado Precipitation
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