TODAY NOV25
TEMPERATURE18
HUMIDITY74
PRESSURE
WIND COND.270 11.2
  • 4525Tue20%40%
  • 3416Wed40%20%
  • 3715
  • 4116Fri
  • 3314Sat
daynightWeather update from Cheyenne, Cheyenne Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Cheyenne for July is 70.1 degrees
  • The lowest monthly average temperature in Cheyenne for December is 27.2 degrees
  • The most monthly precipitation in Cheyenne occurs in July with 2.4 inches
  • The air quality index in Cheyenne is 2% worse than the national average
  • The pollution index in Cheyenne is 85% better than the national average

Compare Cheyenne, WY Weather

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      Cheyenne Average Temperature

      In the event that the weather data was unavailable for this city, estimates based upon nearby cities were used.
      MonthTemp. (min)Temp. (max)Temp. (avg)Precipitation
      January17°F43°F29°F0.3"
      February17°F43°F29°F0.6"
      March24°F54°F38°F0.8"
      April29°F59°F43°F1.7"
      May38°F66°F51°F2.3"
      June48°F81°F64°F1.9"
      July55°F87°F70°F2.4"
      August53°F85°F68°F1.6"
      September45°F77°F60°F1.4"
      October33°F63°F47°F1.2"
      November24°F53°F38°F0.5"
      December15°F41°F27°F0.6"

      Cheyenne air quality index & pollution index

      In the event that the air quality/pollution data was unavailable for this city, estimates based upon nearby cities were used.
      IndexCheyenneWyomingNational
      Air quality index433942
      Pollution index396,1881,779,9752,726,193

      Cheyenne air quality

      MeasurementTotal
      Days measured365
      Days with good air quality305
      Days with moderate air quality60
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.000%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.002%
      Mercury0.000%

      Average monthly Cheyenne temperature with heat index

      Cheyenne monthly precipitation with daily maximum

      Cheyenne monthly snow depth with daily maximum

      Cheyenne monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Fox Farm-College, WY4,1054314.0%
      Ranchettes, WY6,3844314.0%
      South Greeley, WY4,4734314.0%
      Warren AFB, WY2,9974314.0%
      Cheyenne, WY64,0994314.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      South Hill, WA64,1043040.0%
      San Marcos, TX64,0534412.0%
      Youngstown, OH64,1524216.0%
      Lake Elsinore, CA64,2018978.0%
      Bellevue, NE63,9704020.0%
      Cheyenne, WY64,0994314.0%
      Source: The Cheyenne, WY weather data displayed above is derived from the NOAA (National Oceanic and Atmospheric). Air quality and pollution data is derived from the EPA (United States Environmental Protection Agency). Air quality and pollution levels measured in a particular area may not be representative of the entire county.