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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 - 30 AUGUST
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[ °F ]   °C
Weather ElementAvgAvg HighAvg LowRecord HighRecord Low
Temperature 23.4 °C 29.2 °C 18.2 °C 34.4 °C (2010) 13.9 °C (2011)
Dewpoint 17.3 °C 19.4 °C 15.2 °C 25 °C (2003) 6.7 °C (1998)
Humidity 71.1 % 92.9 % 48 % 28 % (1998)
Barometer 1017.3 hPa 1019.6 hPa 1015.2 hPa 1026.8 hPa (2002) 1004.4 hPa (2005)
Wind Speed 9 km/h 18.7 km/h 31.5 km/h (1999)
Wind Gust 32.5 km/h 42.6 km/h (1999)
Precipitation 5.59 mm 15.49 mm (2001)
Weather ElementAverage
Visibility14.2 km
Wind DirectionSSE (166.9 °)
Weather ElementTotal
Heating Degree Days0.6 (Base 18.3)
Cooling Degree Days5.9 (Base 18.3)
Growing Degree Days13.7 (Base 10)
Total Years on Record: 20
WEATHER CONDITIONS BREAKOUT
WIND DIRECTION BREAKOUT




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