TODAY NOV23
TEMPERATURE46
HUMIDITY65
PRESSURE100067.78
WIND COND.300 20.4
  • 5341Sat
  • 5637Sun
  • 6249Mon
  • 6035Tue40%
  • 4936Wed
daynightWeather update from Fort Belvoir at
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Weather Quick Facts

  • The highest monthly average temperature in George Mason for July is 78.1 degrees
  • The lowest monthly average temperature in George Mason for January is 35 degrees
  • The most monthly precipitation in George Mason occurs in September with 11.4 inches
  • The air quality index in George Mason is 12% worse than the national average
  • The pollution index in George Mason is 86% better than the national average

Compare George Mason, VA Weather

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      George Mason 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
      January26°F45°F35°F4.6"
      February27°F48°F37°F4.1"
      March36°F59°F47°F5.4"
      April45°F70°F57°F6.6"
      May54°F77°F66°F7.2"
      June63°F86°F74°F10.2"
      July67°F89°F78°F8.7"
      August66°F87°F76°F7.4"
      September59°F81°F69°F11.4"
      October48°F70°F58°F8.8"
      November37°F59°F47°F5.7"
      December31°F50°F40°F5.9"

      George Mason 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.
      IndexGeorge MasonVirginiaNational
      Air quality index475842
      Pollution index380,1241,561,8812,726,193

      George Mason air quality

      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

      Air quality details

      PollutantTotal
      Arsenic0.003%
      Benzene0.005%
      Carbon Tetrachloride0.001%
      Lead0.001%
      Mercury0.000%

      Average monthly George Mason temperature with heat index

      George Mason monthly precipitation with daily maximum

      George Mason monthly snow depth with daily maximum

      George Mason monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Fairfax, VA23,312476.0%
      Greenbriar, VA7,976476.0%
      Mantua, VA7,784476.0%
      South Run, VA6,760476.0%
      Wolf Trap, VA16,497476.0%
      George Mason, VA9,948476.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Scaggsville, MD9,948476.0%
      Boiling Springs, SC9,9534412.0%
      Gages Lake, IL9,9393922.0%
      River Grove, IL9,9575510.0%
      Box Elder, SD9,9374412.0%
      George Mason, VA9,948476.0%
      Source: The George Mason, 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.