TODAY NOV13
TEMPERATURE42
HUMIDITY100
PRESSURE30.29
WIND COND. 5.8
  • 4931Tue80%
  • 4230Wed
  • 3737Thu100%
  • 4934Fri80%
  • 5033Sat
daynightWeather update from Washington/Dulles International Airport, DC at

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Ashburn 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"

Did you know?

  • The highest monthly average temperature in Ashburn for July is 78 degrees.
  • The lowest monthly average temperature in Ashburn for January is 34 degrees.
  • The most monthly precipitation in Ashburn occurs in May with 5.6 inches.
  • The air quality index in Ashburn is 1% better than the national average.
  • The pollution index in Ashburn is 92% better than the national average.

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Compare Ashburn, VA Weather To Other Cities

Ashburn 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.
IndexAshburnVirginiaNational
Air quality index495850
Pollution index380,1241,533,7925,066,862

Ashburn air quality information

MeasurementTotal
Days measured365
Days with good air quality194
Days with moderate air quality166
Days w/ poor A.Q. for sensitive groups5
Days with unhealthy air quality

Ashburn air quality information

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

Average monthly Ashburn temperature with heat index

Ashburn monthly precipitation with daily maximum

Ashburn monthly snow depth with daily maximum

Ashburn monthly wind speed information

Nearby cities with good air quality

City, StatePopulationAir Quality IndexNational Avg.
Middleburg, VA6563726%
Woodburn, VA8,6773726%
Hillsboro, VA983726%
Purcellville, VA8,9143726%
Bull Run Mountain Estates, VA1,3593726%
Ashburn, VA49,692492%

Cities with similar population

City, StatePopulationAir Quality IndexNational Avg.
Poway, CA49,6756122%
Wheaton, MD49,764492%
Olympia, WA49,6083138%
Cerritos, CA49,7977448%
Bonita Springs, FL49,8073334%
Ashburn, VA49,692492%
Source: The Ashburn, 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.