TODAY NOV22
TEMPERATURE27
HUMIDITY58
PRESSURE
WIND COND.320 14.8
  • 4921Fri
  • 5225Sat
  • 4215Sun20%
  • 4018Mon
  • 4217Tue
daynightWeather update from Riverton Regional Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Arapahoe for July is 76.3 degrees
  • The lowest monthly average temperature in Arapahoe for December is 19.3 degrees
  • The most monthly precipitation in Arapahoe occurs in October with 1.8 inches
  • The air quality index in Arapahoe is 7% worse than the national average
  • The pollution index in Arapahoe is 90% better than the national average

Compare Arapahoe, WY Weather

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      Arapahoe 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
      January13°F33°F22°F0.3"
      February17°F40°F27°F0.3"
      March26°F52°F38°F0.8"
      April33°F61°F46°F1.2"
      May41°F71°F56°F1.3"
      June50°F83°F66°F0.2"
      July60°F92°F76°F0.0"
      August54°F85°F69°F0.5"
      September44°F72°F57°F1.1"
      October34°F57°F44°F1.8"
      November24°F48°F34°F0.4"
      December10°F31°F19°F0.3"

      Arapahoe 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.
      IndexArapahoeWyomingNational
      Air quality index453942
      Pollution index270,1671,779,9752,726,193

      Arapahoe air quality

      MeasurementTotal
      Days measured365
      Days with good air quality294
      Days with moderate air quality69
      Days w/ poor A.Q. for sensitive groups2
      Days with unhealthy air quality0

      Air quality details

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

      Average monthly Arapahoe temperature with heat index

      Arapahoe monthly precipitation with daily maximum

      Arapahoe monthly snow depth with daily maximum

      Arapahoe monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Ethete, WY1,6444510.0%
      Riverton, WY10,9134510.0%
      Hudson, WY4174510.0%
      Johnstown, WY2214510.0%
      Lander, WY7,5334510.0%
      Arapahoe, WY1,7014510.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Owenton, KY1,7014216.0%
      Elm City, NC1,7013628.0%
      Shreve, OH1,7014118.0%
      Port Carbon, PA1,7014216.0%
      Nipigon, ON1,701n/a 
      Arapahoe, WY1,7014510.0%
      Source: The Arapahoe, 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.