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Key findings

  • The highest monthly average temperature in Williams for August is 81.5 degrees
  • The lowest monthly average temperature in Williams for February is 48.1 degrees
  • The most monthly precipitation in Williams occurs in July with 10.1 inches
  • The air quality index in Williams is 42% better than the national average
  • The pollution index in Williams is 133% worse than the national average

Compare Williams, SC Weather

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      Williams 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°F61°F49°F4.4"
      February37°F60°F48°F6.9"
      March43°F70°F56°F7.0"
      April49°F76°F62°F7.0"
      May56°F83°F69°F4.0"
      June68°F88°F77°F7.7"
      July71°F91°F80°F10.1"
      August73°F93°F82°F7.0"
      September67°F89°F77°F3.3"
      October58°F80°F68°F5.5"
      November43°F71°F56°F3.5"
      December40°F63°F50°F7.2"

      Williams 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.
      IndexWilliamsSouth CarolinaNational
      Air quality index293750
      Pollution index6,343,8803,620,4382,726,193

      Williams air quality information

      MeasurementTotal
      Days measured7
      Days with good air quality7
      Days with moderate air quality0
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Williams air quality information

      PollutantTotal
      Arsenic0.050%
      Benzene0.050%
      Carbon Tetrachloride0.090%
      Lead0.010%
      Mercury0.100%

      Average monthly Williams temperature with heat index

      Williams monthly precipitation with daily maximum

      Williams monthly snow depth with daily maximum

      Williams monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Islandton, SC822942.0%
      Ehrhardt, SC4562942.0%
      Varnville, SC2,2582942.0%
      Lodge, SC422942.0%
      Walterboro, SC5,2872942.0%
      Williams, SC1292942.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Jacksonport, AR1294510.0%
      Portland, CO1294412.0%
      Ward, CO129476.0%
      Garber, IA1292942.0%
      Campus, IL1290100.0%
      Williams, SC1292942.0%
      Source: The Williams, 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.