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Key findings

  • The highest monthly average temperature in Marion for July is 80.7 degrees
  • The lowest monthly average temperature in Marion for January is 45.7 degrees
  • The most monthly precipitation in Marion occurs in July with 6.4 inches
  • The air quality index in Marion is 20% better than the national average
  • The pollution index in Marion is 81% better than the national average

Compare Marion, SC Weather

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      Marion 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
      January35°F58°F46°F2.4"
      February36°F61°F48°F3.7"
      March43°F69°F55°F3.2"
      April52°F78°F64°F3.5"
      May60°F84°F71°F4.7"
      June69°F90°F79°F4.8"
      July72°F92°F81°F6.4"
      August71°F91°F80°F4.5"
      September66°F86°F75°F5.1"
      October54°F77°F64°F4.2"
      November42°F68°F54°F2.8"
      December39°F62°F50°F4.0"

      Marion 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.
      IndexMarionSouth CarolinaNational
      Air quality index403750
      Pollution index940,5213,325,3185,066,862

      Marion air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality288
      Days with moderate air quality77
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Marion air quality information

      PollutantTotal
      Arsenic0.001%
      Benzene0.010%
      Carbon Tetrachloride0.002%
      Lead0.003%
      Mercury0.000%

      Average monthly Marion temperature with heat index

      Marion monthly precipitation with daily maximum

      Marion monthly snow depth with daily maximum

      Marion monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Lake View, SC7613040%
      Nichols, SC3833040%
      Latta, SC1,3694020%
      Aynor, SC6344020%
      Pamplico, SC1,1864020%
      Marion, SC6,7564020%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Taneytown, MD6,7554216%
      Vandalia, IL6,7584020%
      Torrington, WY6,7591962%
      Gibsonville, NC6,7593138%
      Ephraim, UT6,751468%
      Marion, SC6,7564020%
      Source: The Marion, 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.