TODAY DEC22
TEMPERATURE43
HUMIDITY49
PRESSURE103050
WIND COND.40 11.2
  • 5139Mon30%
  • 5642Tue40%
  • 604620%
  • 6146Thu20%20%
  • 6349Fri30%30%
daynightWeather update from Summerville Airport at
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Weather Quick Facts

  • The highest monthly average temperature in Summerville for July is 81.5 degrees
  • The lowest monthly average temperature in Summerville for January is 49.6 degrees
  • The most monthly precipitation in Summerville occurs in August with 8 inches
  • The air quality index in Summerville is 10% better than the national average
  • The pollution index in Summerville is 71% better than the national average

Compare Summerville, SC Weather

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      Summerville 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
      January38°F64°F50°F2.9"
      February39°F66°F51°F3.7"
      March45°F72°F58°F3.1"
      April53°F80°F66°F3.4"
      May62°F85°F73°F3.4"
      June70°F91°F79°F6.6"
      July73°F92°F82°F6.5"
      August73°F91°F81°F8.0"
      September68°F87°F76°F5.9"
      October56°F80°F67°F5.6"
      November45°F72°F57°F2.9"
      December42°F67°F53°F3.7"

      Summerville 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.
      IndexSummervilleSouth CarolinaNational
      Air quality index383742
      Pollution index783,5893,620,4382,726,193

      Summerville air quality

      MeasurementTotal
      Days measured355
      Days with good air quality299
      Days with moderate air quality55
      Days w/ poor A.Q. for sensitive groups1
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.001%
      Benzene0.010%
      Carbon Tetrachloride0.001%
      Lead0.003%
      Mercury0.000%

      Average monthly Summerville temperature with heat index

      Summerville monthly precipitation with daily maximum

      Summerville monthly snow depth with daily maximum

      Summerville monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Ridgeville, SC1,8492942.0%
      Goose Creek, SC42,9443824.0%
      North Charleston, SC113,8803824.0%
      Hanahan, SC25,7433824.0%
      Sangaree, SC9,2493824.0%
      Summerville, SC53,6433824.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Kingsport, TN53,6994510.0%
      West Sacramento, CA53,574524.0%
      Aloha, OR53,7243824.0%
      Harrisonburg, VA53,5583628.0%
      Apple Valley, MN53,728468.0%
      Summerville, SC53,6433824.0%
      Source: The Summerville, SC 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.