Grand Junction Weather in September

   
 
 

Check the Weather in Grand Junction, Colorado in September before you book your next holiday. This gives the best indication of the weather in September and includes figures for temperature, sunshine and rainfall.

Max Daytime Temperature (°C) 28°C (82°F) Max Daytime Temperature in September in Grand Junction 28°C (82°F) in September
Min Night-time Temperature (°C) 10°C (50°F) Min Night-time Temperature in September in Grand Junction 10°C (50°F) in September
Hours of Sunshine (Daily) 10 Hours of Bright Sunshine per day (78% of Daylight Hours) in September in Grand Junction 10 Hours per day in September
Hours of Daylight (Daily) 12 Hours of Daylight in September in Grand Junction 12 Hours per day in September
Heat and Humidity Discomfort Low heat & humidity in September in Grand Junction Low in September
Days with some Rainfall 6 Days with some Rainfall in September in Grand Junction 6 Days in September
Monthly Rainfall (mm) 22 mm (0.9 inches) Monthly Rainfall in September in Grand Junction 22 mm (0.9 inches) in September
UV Index (Maximum) UV (Maximum) Index 7 (High) in September in Grand Junction 7 (High) in September
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Metric (°C)  |  Imperial (°F) 
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Map of Colorado

Select a destination from the Colorado Map to view the september weather guide. Alternatively, select from the list of destinations below the map. Can't find the Colorado weather destination you are after? Try the Destination Search.

Alamosa   Aspen   Breckenridge   Colorado Springs   Denver   Durango   Estes Park   Fort Collins   Glenwood Springs   Pueblo   Telluride   Vail  

Grand Junction weather by month

Check the weather for a particular month in Grand Junction by selecting a month from the list below. Alternatively check which month usually has the Best Weather in Grand Junction. If you are not sure where to go, why not try our Holiday Planner.

   
 
 

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