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Weather in September in Cheyenne, Wyoming

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< September >
 
Normal Max/ High Temperature 23°C (73°F)
 
Average Temperature 15°C (59°F)
 
Min/ Low Temperature 7°C (45°F)
 
Normal Precipitation 28mm (1.1in)
Number of Wet Days (probability of rain on a day) 7 (23%)
Average Sunlight per day 08:48
Average Daylight per day 12:25
Sunny (Cloudy) Daylight Hours 72% (28%)
Sun altitude at solar noon on the 21st day.
49.3°


  • The average temperature in Cheyenne, Wyoming in September is mild at 15 °C (59 °F).
  • Afternoons can be fairly hot with average high temperatures reaching 23 °C (73.4 °F).
  • Overnight temperatures are generally a little cool with an average low of 7 °C (44.6 °F).
  • In September the average diurnal temperature range/ variation is 16 °C (28.8 °F).
  • The weather in September is somewhat parched with sporadic rain. A paltry 28mm (1.1in) of water is unloaded during an average of 7 days.
  • The blue above Cheyenne, Wyoming is quite sunny having an average of a sizable 8:48 of intense sunshine daily.
  • The shortest day is 11:45 long and the longest day is 13:06 long with an average length of 12:25.
  • There are approximately 3:26 per day when bright sunshine is absent due to cloud, haze or the sun being too low on the horizon to register.
  • It is sunny approximately 71.9% of daylight hours and cloudy 28.1% of daylight hours.

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Weather Trend Graph for September in Cheyenne, Wyoming, Usa

Graph of weather in Cheyenne, Wyoming in September

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