DULLES, VIRGINIA

Home > North America > United States > Virginia
Elevation: 290 feet Latitude: 38 57N Longitude: 077 27W

WEATHER

Daily Averages

Hourly Data

SELECT A DAY

PRINT THIS DATA

[ ← Previous Day ]
DAILY WEATHER AVERAGE - JUNE 29

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	75.3 ^°F	84.9 ^°F	66.1 ^°F	100.9 ^°F (2012)	55 ^°F (2015)
Dewpoint	63 ^°F	67.5 ^°F	58.1 ^°F	73.9 ^°F (1999)	48 ^°F (2011)
Humidity	68.6 ^%	92.3 ^%	45.7 ^%		26 ^% (2011)
Barometer	29.97 ⁱⁿ	30.04 ⁱⁿ	29.90 ⁱⁿ	30.26 ⁱⁿ (2014)	29.52 ⁱⁿ (2009)
Wind Speed	6 ^mph	15 ^mph		57.5 ^mph (2012)
Wind Gust		25.1 ^mph		71.3 ^mph (2012)
Precipitation	0.33 ⁱⁿ			1.11 ⁱⁿ (2012)

Weather Element	Average
Visibility	8.7 ^mi
Wind Direction	SSW (199.7 °)

Weather Element	Total
Cooling Degree Days	10.6 (Base 18.3)
Growing Degree Days	25.6 (Base 10)

Total Years on Record: 20

WEATHER CONDITIONS BREAKOUT

WIND DIRECTION BREAKOUT