DULLES, VIRGINIA

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Elevation: 290 feet Latitude: 38 57N Longitude: 077 27W

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DAILY WEATHER AVERAGE - FEBRUARY 19

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	36.3 ^°F	46.5 ^°F	24.8 ^°F	69.1 ^°F (1997)	6.1 ^°F (2015)
Dewpoint	21 ^°F	28.8 ^°F	13.6 ^°F	48.9 ^°F (1997)	-13 ^°F (2011)
Humidity	58 ^%	82.3 ^%	39 ^%		16 ^% (2011)
Barometer	30.09 ⁱⁿ	30.22 ⁱⁿ	29.96 ⁱⁿ	30.60 ⁱⁿ (2016)	29.44 ⁱⁿ (2009)
Wind Speed	9.3 ^mph	17.9 ^mph		39.1 ^mph (2011)
Wind Gust		30 ^mph		52.9 ^mph (2011)
Precipitation	0.19 ⁱⁿ			0.41 ⁱⁿ (2000)

Weather Element	Average
Visibility	9.7 ^mi
Wind Direction	SW (220.2 °)

Weather Element	Total
Heating Degree Days	29.4 (Base 18.3)
Growing Degree Days	7.6 (Base 10)

Total Years on Record: 22

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