Cheyenne Weather in May

The climate in Cheyenne during May can be summarized as warm and damp.

May is in the spring in Cheyenne and is typically the 5th warmest month of the year. Daytime maximum temperatures average around a comfortable 27°C (80°F), whilst at night 12°C (53°F) is normal.

On average May is the wettest month of the year in Cheyenne with around 107mm 4.2 inches of rain making it a damp time to visit. This rainfall is typically spread over 9 days, although this may vary considerably.

On the flip side this corresponds to an average of 10.6 hours of sunshine per day.

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 May 2025.