Mild
Average highs are around 22°C, so days are mild rather than hot.
September verdict
Cheyenne, Wyoming, United States in September
Weather score56Good
Good for holiday weather
Average highs are around 22°C, so days are mild rather than hot. Sunshine averages 8.6h per day, so bright days are a strong part of the month. Rainfall averages 34mm, which is relatively low for holiday planning.
September weather
Monthly averages
Temp
22°C
Rain
34mm
Sun
8.6h
Weather score
56
Good
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Drier
Rainfall averages 34mm, which is relatively low for holiday planning.
Bright
Sunshine averages 8.6h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Cheyenne, Wyoming, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
September22°C average high
September sits in the warmer part of the year, so midday sightseeing can feel heavier than in cooler months.
Warmest monthsJune to September
This stretch sets the upper range for average daytime heat.
Rain
September34mm average rain
September sits near Cheyenne's yearly rainfall average, so rain is a normal planning factor rather than an outlier.
Driest monthsJanuary to April and August to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
September8.6 hours average sun
September sits close to Cheyenne's yearly sunshine average, so it is a middle-of-the-pack month for bright days.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
September56 weather score
September sits close to Cheyenne's yearly weather-score average, giving a typical overall read on the month.
Best weather monthsJuly to August
These months have the strongest weather score in the monthly averages.
