TODAY NOV16
TEMPERATURE46
HUMIDITY87
PRESSURE29.89
WIND COND.350 17.2
  • 5647Sun
  • 6050Mon
  • 6145Tue
  • 6447Wed
  • 6953Thu
daynightWeather update from Charleston Executive Airport 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
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"

Did you know?

  • The highest monthly average temperature in Charleston for July is 82 degrees.
  • The lowest monthly average temperature in Charleston for January is 50 degrees.
  • The most monthly precipitation in Charleston occurs in August with 8 inches.
  • The air quality index in Charleston is 28% better than the national average.
  • The pollution index in Charleston is 85% better than the national average.

Compare Charleston, SC Weather To Other Cities

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.
IndexCharlestonSouth CarolinaNational
Air quality index363750
Pollution index783,5893,325,3185,066,862

Charleston air quality information

MeasurementTotal
Days measured365
Days with good air quality304
Days with moderate air quality61
Days w/ poor A.Q. for sensitive groups
Days with unhealthy air quality

Charleston air quality information

PollutantTotal
Arsenic0.001%
Benzene0.010%
Carbon Tetrachloride0.001%
Lead0.003%
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.
Goose Creek, SC40,5533628%
Kiawah Island, SC1,5433628%
Sullivan's Island, SC2,0493628%
Hanahan, SC20,7103628%
Mount Pleasant, SC77,9073628%
Charleston, SC129,8883628%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Enterprise, NV129,620548%
Cedar Rapids, IA129,5374216%
New Haven, CT130,405492%
Carrollton, TX129,266548%
Thornton, CO130,511548%
Charleston, SC129,8883628%
Source: The Charleston, 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.
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