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Key findings

  • The highest monthly average temperature in Rock Hill for August is 80.8 degrees
  • The lowest monthly average temperature in Rock Hill for February is 43 degrees
  • The most monthly precipitation in Rock Hill occurs in March with 9.2 inches
  • The air quality index in Rock Hill is 1% better than the national average
  • The pollution index in Rock Hill is 110% worse than the national average

Compare Rock Hill, SC Weather

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      Rock Hill 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
      January34°F57°F44°F4.7"
      February32°F56°F43°F4.9"
      March40°F67°F53°F9.2"
      April46°F73°F59°F5.1"
      May54°F80°F67°F3.1"
      June65°F87°F75°F7.7"
      July69°F90°F78°F6.0"
      August71°F93°F81°F3.6"
      September63°F88°F75°F1.5"
      October54°F77°F64°F3.9"
      November39°F66°F52°F4.6"
      December34°F58°F44°F7.2"

      Rock Hill 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.
      IndexRock HillSouth CarolinaNational
      Air quality index493750
      Pollution index5,729,5703,620,4382,726,193

      Rock Hill air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality200
      Days with moderate air quality147
      Days w/ poor A.Q. for sensitive groups18
      Days with unhealthy air quality0

      Rock Hill air quality information

      PollutantTotal
      Arsenic4.280%
      Benzene0.050%
      Carbon Tetrachloride0.020%
      Lead0.130%
      Mercury0.040%

      Average monthly Rock Hill temperature with heat index

      Rock Hill monthly precipitation with daily maximum

      Rock Hill monthly snow depth with daily maximum

      Rock Hill monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      York, SC7,9893628.0%
      Lowrys, SC2103628.0%
      McConnells, SC2483628.0%
      India Hook, SC4,192492.0%
      Riverview, SC645492.0%
      Rock Hill, SC70,251492.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Norfolk County, ON70,339n/a 
      Missoula, MT70,1174020.0%
      Redlands, CA70,4428978.0%
      Lauderhill, FL70,4524118.0%
      Flower Mound, TX69,966512.0%
      Rock Hill, SC70,251492.0%
      Source: The Rock Hill, 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.