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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 - APRIL 29
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[ °C ]   °F
Weather ElementAvgAvg HighAvg LowRecord HighRecord Low
Temperature 56.4 °F 68.3 °F 44.2 °F 87.1 °F (1996) 35.1 °F (2001)
Dewpoint 42.3 °F 47.4 °F 36.8 °F 66 °F (1996) 23 °F (2010)
Humidity 63.9 % 88.7 % 40.6 % 21 % (2010)
Barometer 30.06 in 30.15 in 29.98 in 30.61 in (2001) 29.61 in (2002)
Wind Speed 7.1 mph 14.8 mph 24.2 mph (2002)
Wind Gust 24.7 mph 34.5 mph (1996)
Precipitation 0.38 in 1.10 in (2014)
Weather ElementAverage
Visibility9.6 mi
Wind DirectionSSW (187.4 °)
Weather ElementTotal
Heating Degree Days9.7 (Base 18.3)
Cooling Degree Days9.1 (Base 18.3)
Growing Degree Days6.8 (Base 10)
Total Years on Record: 21
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