TODAY DEC29
TEMPERATURE67
HUMIDITY81
PRESSURE101690
WIND COND.140 24.1
  • 725270%40%
  • 6949Mon
  • 7246Tue
  • 6137
  • 5535Thu
daynightWeather update from Charleston, Charleston Air Force Base at
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Weather Quick Facts

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

Compare Hanahan, SC Weather

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      Hanahan 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"

      Hanahan 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.
      IndexHanahanSouth CarolinaNational
      Air quality index383742
      Pollution index783,5893,620,4382,726,193

      Hanahan 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 Hanahan temperature with heat index

      Hanahan monthly precipitation with daily maximum

      Hanahan monthly snow depth with daily maximum

      Hanahan monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Hollywood, SC5,2733824.0%
      Ladson, SC15,2523824.0%
      Ravenel, SC2,6503824.0%
      Charleston, SC137,0413824.0%
      Lincolnville, SC2,4293824.0%
      Hanahan, SC25,7433824.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Green, OH25,7374314.0%
      Laurel, MD25,734476.0%
      Beloeil, QC25,755n/a 
      White Bear Lake, MN25,718468.0%
      Owatonna, MN25,7163628.0%
      Hanahan, SC25,7433824.0%
      Source: The Hanahan, 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.