TODAY DEC22
TEMPERATURE27
HUMIDITY84
PRESSURE
WIND COND.18
  • 3324Sun30%60%
  • 3418Mon100%30%
  • 3624Tue20%80%
  • 321470%
  • 2921Thu80%
daynightWeather update from DW6140 Thayne at
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Weather Quick Facts

  • The highest monthly average temperature in Etna for July is 73.5 degrees
  • The lowest monthly average temperature in Etna for January is 20.6 degrees
  • The most monthly precipitation in Etna occurs in September with 3.8 inches
  • The air quality index in Etna is 2% worse than the national average
  • The pollution index in Etna is 76% better than the national average

Compare Etna, WY Weather

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      Etna 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
      January12°F29°F21°F2.7"
      February15°F33°F24°F1.9"
      March23°F42°F33°F2.3"
      April30°F54°F43°F3.1"
      May37°F63°F52°F3.6"
      June45°F76°F63°F3.3"
      July53°F86°F74°F1.0"
      August49°F84°F70°F1.7"
      September40°F74°F60°F3.8"
      October32°F57°F45°F2.8"
      November23°F43°F34°F2.2"
      December16°F31°F23°F1.5"

      Etna 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.
      IndexEtnaWyomingNational
      Air quality index433942
      Pollution index656,1171,779,9752,726,193

      Etna air quality

      MeasurementTotal
      Days measured365
      Days with good air quality326
      Days with moderate air quality39
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

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

      Average monthly Etna temperature with heat index

      Etna monthly precipitation with daily maximum

      Etna monthly snow depth with daily maximum

      Etna monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Alpine Northwest, WY1574314.0%
      Bedford, WY5154314.0%
      Thayne, WY4624314.0%
      Freedom, WY2064314.0%
      Turnerville, WY944314.0%
      Etna, WY04314.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Chase, AK03138.0%
      Chiniak, AK03138.0%
      Chisana, AK03138.0%
      Dot Lake, AK03824.0%
      Eureka Roadhouse, AK03138.0%
      Etna, WY04314.0%
      Source: The Etna, 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.