DULLES, VIRGINIA

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

WEATHER

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DAILY WEATHER AVERAGE - 3 MARCH

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	3.1 ^°C	8.5 ^°C	-1.9 ^°C	21 ^°C (1999)	-16.1 ^°C (2014)
Dewpoint	-4.9 ^°C	-0.4 ^°C	-9.4 ^°C	12.2 ^°C (1999)	-20.6 ^°C (2000)
Humidity	59.4 ^%	81.5 ^%	37.5 ^%		22 ^% (2000)
Barometer	1015.9 ^hPa	1020.7 ^hPa	1010.8 ^hPa	1039.3 ^hPa (2011)	988.5 ^hPa (1999)
Wind Speed	16.3 ^km/h	29.9 ^km/h		44.4 ^km/h (1996)
Wind Gust		44.6 ^km/h		64.9 ^km/h (1996)
Precipitation	20.07 ^mm			51.05 ^mm (1999)

Weather Element	Average
Visibility	15.6 ^km
Wind Direction	WSW (240.8 °)

Weather Element	Total
Heating Degree Days	15.1 (Base 18.3)
Growing Degree Days	1.4 (Base 10)

Total Years on Record: 21

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