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Key findings

  • The highest monthly average temperature in Clarendon-Courthouse for July is 81 degrees
  • The lowest monthly average temperature in Clarendon-Courthouse for January is 37 degrees
  • The most monthly precipitation in Clarendon-Courthouse occurs in June with 5.3 inches
  • The air quality index in Clarendon-Courthouse is 5% better than the national average
  • The pollution index in Clarendon-Courthouse is 69% better than the national average

Compare Arlington, VA Weather

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      Clarendon-Courthouse 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
      January28°F47°F37°F2.7"
      February29°F50°F38°F2.3"
      March37°F60°F47°F3.2"
      April47°F71°F58°F3.4"
      May56°F78°F67°F4.6"
      June67°F87°F77°F5.3"
      July72°F91°F81°F4.2"
      August70°F90°F79°F3.2"
      September63°F83°F72°F3.5"
      October52°F72°F61°F5.0"
      November40°F61°F50°F2.5"
      December33°F52°F42°F3.8"

      Clarendon-Courthouse 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.
      IndexClarendon-CourthouseArlingtonVirginia
      Air quality index474758
      Pollution index1,590,970208,4341,533,792

      Clarendon-Courthouse air quality information

      MeasurementTotal
      Days measured365
      Days with good air quality209
      Days with moderate air quality145
      Days w/ poor A.Q. for sensitive groups10
      Days with unhealthy air quality1

      Clarendon-Courthouse air quality information

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

      Average monthly Clarendon-Courthouse temperature with heat index

      Clarendon-Courthouse monthly precipitation with daily maximum

      Clarendon-Courthouse monthly snow depth with daily maximum

      Clarendon-Courthouse monthly wind speed information

      Nearby cities with good air quality

      City, StatePopulationAir Quality IndexNational Avg.
      Fair Oaks, VA33,478476%
      Franconia, VA19,935476%
      Hayfield, VA4,453476%
      Kings Park, VA4,687476%
      Lake Ridge, VA44,685476%
      Arlington, VA226,092476%

      Cities with similar population

      City, StatePopulationAir Quality IndexNational Avg.
      Gilbert, AZ226,8327448%
      Fremont, CA227,9344314%
      Baton Rouge, LA228,6944510%
      Paradise, NV229,666548%
      North Las Vegas, NV230,436548%
      Arlington, VA226,092476%
      Source: The Clarendon-Courthouse, Arlington, VA 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.