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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 - JUNE 21
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[ °C ]   °F
Weather ElementAvgAvg HighAvg LowRecord HighRecord Low
Temperature 73.9 °F 83.7 °F 63.4 °F 93.9 °F (2012) 51.8 °F (2005)
Dewpoint 62.4 °F 66.3 °F 58.2 °F 73.4 °F (2011) 46.9 °F (2007)
Humidity 70 % 93.5 % 48.2 % 27 % (2007)
Barometer 30.00 in 30.06 in 29.93 in 30.48 in (2002) 29.58 in (2009)
Wind Speed 5.9 mph 12.2 mph 20.7 mph (2000)
Wind Gust 22 mph 26.5 mph (2007)
Precipitation 0.24 in 1.45 in (2000)
Weather ElementAverage
Visibility8.9 mi
Wind DirectionS (179.7 °)
Weather ElementTotal
Heating Degree Days1.8 (Base 18.3)
Cooling Degree Days9.6 (Base 18.3)
Growing Degree Days23.6 (Base 10)
Total Years on Record: 21
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WIND DIRECTION BREAKOUT




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