Cheyenne Weather in September

What's the weather like in Cheyenne (Wyoming) in September 2024?

The climate in Cheyenne during September can be summarized as mild and reasonably dry.

September is in the fall / autumn in Cheyenne and is typically the 4th warmest month of the year. Daytime maximum temperatures average around 22°C (72°F), whilst at night 6°C (43°F) is normal.

Cheyenne weather averages (imperial / metric)
Daytime temperature 22.1°C 71.7°F
Nightly temperature 6.2°C 43.1°F
Average temperature 14.1°C 57.4°F
Daily sunshine 9.4 hrs
Avg rainfall 34 mm 1.3 ins
Rainy days 8 days
Sea temperature 17.2°C 63°F
Humidity 52%
Windspeed 16.9kph 11 mph

On average September is the 6th wettest month of the year in Cheyenne with around 34mm 1.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.

On the flip side this corresponds to an average of 9.4 hours of sunshine per day.

September temperatures in Cheyenne

Cheyenne average temperature in September

September rainfall

Cheyenne average rain in September

September hourly sunshine

Cheyenne average rain in September

The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in Cheyenne in September 2024.

Other monthly averages

Best places to visit in September

UV index Best time to go?

Beta

Current (hourly) weather 15 day forecast

Cheyenne weather stats

Cheyenne weather statistics
Hottest month: July 27.9°C 82.2°F
Driest month: December 11mm 0.4ins
Sunniest month: September 9.4hrs
Coldest month: January 3.1°C 37.6°F
Wettest month: May 67mm 2.6ins
Map showing location of Cheyenne (41.13998, -104.82025) Cheyenne map pin © Google

Locations nearby

Top United States locations