TODAY NOV21
TEMPERATURE46
HUMIDITY71
PRESSURE100270
WIND COND.360 18.4
  • 4338Fri40%40%
  • 5437Sat
  • 5634Sun
  • 6045Mon
  • 5734Tue30%
daynightWeather update from Manassas, Manassas Regional Airport/Harry P. Davis Field at
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Weather Quick Facts

  • The highest monthly average temperature in The Plains for July is 77.1 degrees
  • The lowest monthly average temperature in The Plains for January is 33.8 degrees
  • The most monthly precipitation in The Plains occurs in September with 11.6 inches
  • The air quality index in The Plains is 10% better than the national average
  • The pollution index in The Plains is 56% better than the national average

Compare The Plains, VA Weather

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      The Plains 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
      January25°F44°F34°F2.9"
      February25°F47°F35°F2.9"
      March34°F57°F45°F5.0"
      April43°F70°F56°F4.1"
      May54°F77°F65°F4.0"
      June62°F85°F73°F5.4"
      July67°F89°F77°F9.1"
      August65°F87°F75°F5.1"
      September58°F80°F68°F11.6"
      October46°F70°F57°F7.0"
      November35°F58°F45°F6.5"
      December30°F49°F39°F2.7"

      The Plains 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.
      IndexThe PlainsVirginiaNational
      Air quality index385842
      Pollution index1,198,9901,561,8812,726,193

      The Plains air quality

      MeasurementTotal
      Days measured365
      Days with good air quality333
      Days with moderate air quality32
      Days w/ poor A.Q. for sensitive groups0
      Days with unhealthy air quality0

      Air quality details

      PollutantTotal
      Arsenic0.002%
      Benzene0.020%
      Carbon Tetrachloride0.002%
      Lead0.010%
      Mercury0.002%

      Average monthly The Plains temperature with heat index

      The Plains monthly precipitation with daily maximum

      The Plains monthly snow depth with daily maximum

      The Plains monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Bull Run Mountain Estates, VA1,7773824.0%
      New Baltimore, VA11,0173824.0%
      Warrenton, VA9,9283824.0%
      Middleburg, VA5733824.0%
      Marshall, VA2,9133824.0%
      The Plains, VA1683824.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Marshall, AK1683138.0%
      Sedgwick, AR1684510.0%
      Elgin, AZ1684510.0%
      La Junta Gardens, CO1682060.0%
      Makena, HI1681570.0%
      The Plains, VA1683824.0%
      Source: The The Plains, 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.