TODAY APR25
TEMPERATURE72
HUMIDITY
PRESSURE100850
WIND COND.250 16.6
  • 6539Thu20%40%
  • 5137Fri100%60%
  • 4934Sat80%30%
  • 5633Sun
  • 6338Mon
daynightWeather update from Provo Municipal Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Charleston for July is 77.1 degrees
  • The lowest monthly average temperature in Charleston for January is 24.7 degrees
  • The most monthly precipitation in Charleston occurs in September with 4.4 inches
  • The air quality index in Charleston is 9% worse than the national average
  • The pollution index in Charleston is 75% better than the national average

Compare Charleston, UT Weather

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      Charleston 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°F33°F25°F3.9"
      February24°F43°F32°F2.5"
      March33°F55°F43°F2.5"
      April38°F62°F49°F2.5"
      May45°F71°F58°F3.1"
      June54°F85°F70°F3.6"
      July62°F92°F77°F1.9"
      August60°F89°F74°F2.7"
      September50°F79°F64°F4.4"
      October39°F64°F51°F3.2"
      November30°F51°F39°F2.0"
      December21°F36°F28°F2.2"

      Charleston 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.
      IndexCharlestonUtahNational
      Air quality index464542
      Pollution index688,7493,340,3692,726,193

      Charleston air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality253
      Days with moderate air quality111
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Charleston air quality information

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

      Average monthly Charleston temperature with heat index

      Charleston monthly precipitation with daily maximum

      Charleston monthly snow depth with daily maximum

      Charleston monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Pleasant Grove, UT38,474468.0%
      Interlaken, UT112468.0%
      Wallsburg, UT330468.0%
      Midway, UT5,210468.0%
      Francis, UT1,364468.0%
      Charleston, UT550468.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Eek, AK5503138.0%
      New Cuyama, CA5504412.0%
      San Simeon, CA550468.0%
      Camargo, IL5504216.0%
      Thebes, IL5504412.0%
      Charleston, UT550468.0%
      Source: The Charleston, UT 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.