TODAY NOV21
TEMPERATURE50
HUMIDITY52
PRESSURE100370
WIND COND.250 14.8
  • 4237Fri50%40%
  • 5342Sat
  • 5535Sun
  • 5947Mon
  • 5737Tue30%
daynightWeather update from Washington/Dulles International Airport, DC at
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Weather Quick Facts

  • The highest monthly average temperature in Sterling for July is 77.7 degrees
  • The lowest monthly average temperature in Sterling for January is 34.4 degrees
  • The most monthly precipitation in Sterling occurs in May with 5.6 inches
  • The air quality index in Sterling is 12% worse than the national average
  • The pollution index in Sterling is 86% better than the national average

Compare Sterling, VA Weather

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      Sterling 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
      January24°F46°F34°F2.7"
      February25°F48°F36°F2.1"
      March33°F58°F45°F3.2"
      April43°F71°F56°F3.7"
      May52°F78°F65°F5.6"
      June61°F86°F74°F4.5"
      July66°F90°F78°F4.2"
      August65°F88°F76°F2.8"
      September58°F82°F69°F3.5"
      October46°F71°F58°F5.4"
      November35°F59°F46°F2.6"
      December29°F50°F39°F3.8"

      Sterling 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.
      IndexSterlingVirginiaNational
      Air quality index475842
      Pollution index380,1241,561,8812,726,193

      Sterling 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 Sterling temperature with heat index

      Sterling monthly precipitation with daily maximum

      Sterling monthly snow depth with daily maximum

      Sterling monthly wind speed information

      Nearby cities with good air quality

      CityPopulationAir Quality IndexNational Avg.
      Woodburn, VA10,0813824.0%
      Hamilton, VA7083824.0%
      Bull Run Mountain Estates, VA1,7773824.0%
      Chantilly, VA23,820476.0%
      Stone Ridge, VA15,034476.0%
      Sterling, VA30,872476.0%

      Cities with similar population

      CityPopulationAir Quality IndexNational Avg.
      Los Altos, CA30,8784314.0%
      Fair Oaks, CA30,882524.0%
      Algonquin, IL30,8484216.0%
      Centre Wellington, ON30,896n/a 
      Cleburne, TX30,8123334.0%
      Sterling, VA30,872476.0%
      Source: The Sterling, 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.