TODAY MAR31
TEMPERATURE54
HUMIDITY77
PRESSURE29.91
WIND COND.360 9.2
  • 5740Wed
  • 6543Thu
  • 7148Fri
  • 7254Sat
  • 7455Sun20%20%
daynightWeather update from Chattanooga, Lovell Field at
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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
January31°F54°F41°F5.0"
February32°F57°F44°F3.9"
March41°F67°F53°F4.8"
April49°F77°F62°F6.0"
May57°F83°F69°F3.7"
June66°F91°F78°F3.4"
July70°F92°F80°F5.5"
August70°F92°F80°F4.2"
September63°F87°F73°F4.5"
October50°F76°F62°F4.3"
November38°F65°F51°F4.5"
December35°F56°F45°F6.5"

Did you know?

  • The highest monthly average temperature in Charleston for August is 80 degrees.
  • The lowest monthly average temperature in Charleston for January is 41 degrees.
  • The most monthly precipitation in Charleston occurs in December with 6.5 inches.
  • The air quality index in Charleston is 98% better than the national average.
  • The pollution index in Charleston is 95% better than the national average.

Compare Charleston, TN Weather To Other Cities

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      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.
      IndexCharlestonTennesseeNational
      Air quality index17650
      Pollution index271,3563,610,4745,066,862

      Charleston air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality363
      Days with moderate air quality2
      Days w/ poor A.Q. for sensitive groups
      Days with unhealthy air quality

      Charleston air quality information

      PollutantTotal
      Arsenic0.000%
      Benzene0.004%
      Carbon Tetrachloride0.001%
      Lead0.000%
      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

      City, StatePopulationAir Quality IndexNational Avg.
      Benton, TN1,821198%
      East Cleveland, TN1,833198%
      South Cleveland, TN7,414198%
      Calhoun, TN618198%
      Wildwood Lake, TN3,486198%
      Charleston, TN888198%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Potomac Park, MD8883236%
      Morganza, LA888468%
      Riner, VA8883530%
      Washburn, IA8884314%
      Puget Island, WA8882256%
      Charleston, TN888198%
      Source: The Charleston, TN 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.