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United States of America

DULLES, VIRGINIA


Home > North America > United States > Virginia
Elevation: 88 meters     Latitude: 38 57N     Longitude: 077 27W

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DAILY WEATHER AVERAGE - 29 AUGUST
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[ °F ]   °C
Weather ElementAvgAvg HighAvg LowRecord HighRecord Low
Temperature 23.4 °C 29.2 °C 18.7 °C 35.6 °C (2006) 12.2 °C (2014)
Dewpoint 17.7 °C 19.7 °C 15.3 °C 23.9 °C (2003) 9.4 °C (1999)
Humidity 72.8 % 93.5 % 49.2 % 33 % (1999)
Barometer 1015.9 hPa 1017.9 hPa 1013.9 hPa 1025.4 hPa (2010) 1005.8 hPa (2009)
Wind Speed 8 km/h 17.7 km/h 25.9 km/h (2003)
Wind Gust 33.8 km/h 38.9 km/h (2003)
Precipitation 7.87 mm 37.08 mm (2008)
Weather ElementAverage
Visibility13.2 km
Wind DirectionSSW (187.5 °)
Weather ElementTotal
Heating Degree Days0.8 (Base 18.3)
Cooling Degree Days5.9 (Base 18.3)
Growing Degree Days13.9 (Base 10)
Total Years on Record: 20
WEATHER CONDITIONS BREAKOUT
WIND DIRECTION BREAKOUT




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