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United States of America

DULLES, VIRGINIA


Home > North America > United States > Virginia
Elevation: 290 feet     Latitude: 38 57N     Longitude: 077 27W

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DAILY WEATHER AVERAGE - OCTOBER 28
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[ °C ]   °F
Weather ElementAvgAvg HighAvg LowRecord HighRecord Low
Temperature 52.5 °F 62 °F 42.8 °F 81 °F (2014) 30 °F (1997)
Dewpoint 42.2 °F 49.1 °F 33.3 °F 68 °F (2015) 21.9 °F (2010)
Humidity 71.2 % 92.4 % 44.3 % 22 % (2010)
Barometer 30.05 in 30.18 in 29.94 in 30.57 in (2001) 29.27 in (2006)
Wind Speed 7.2 mph 15.4 mph 25.3 mph (2008)
Wind Gust 28.5 mph 43.7 mph (2008)
Precipitation 0.93 in 4.23 in (2015)
Weather ElementAverage
Visibility8.8 mi
Wind DirectionSSW (213.1 °)
Weather ElementTotal
Heating Degree Days13.4 (Base 18.3)
Cooling Degree Days2.1 (Base 18.3)
Growing Degree Days9.7 (Base 10)
Total Years on Record: 20
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