DULLES, VIRGINIA

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Elevation: 88 meters Latitude: 38 57N Longitude: 077 27W

WEATHER

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DAILY WEATHER AVERAGE - 19 FEBRUARY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	2.4 ^°C	8.1 ^°C	-4 ^°C	20.6 ^°C (1997)	-14.4 ^°C (2015)
Dewpoint	-6.1 ^°C	-1.8 ^°C	-10.2 ^°C	9.4 ^°C (1997)	-25 ^°C (2011)
Humidity	58 ^%	82.3 ^%	39 ^%		16 ^% (2011)
Barometer	1019 ^hPa	1023.4 ^hPa	1014.6 ^hPa	1036.2 ^hPa (2016)	997 ^hPa (2009)
Wind Speed	15 ^km/h	28.8 ^km/h		62.9 ^km/h (2011)
Wind Gust		48.3 ^km/h		85.1 ^km/h (2011)
Precipitation	4.83 ^mm			10.41 ^mm (2000)

Weather Element	Average
Visibility	15.6 ^km
Wind Direction	SW (220.2 °)

Weather Element	Total
Heating Degree Days	16.3 (Base 18.3)
Growing Degree Days	4.2 (Base 10)

Total Years on Record: 22

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