DULLES, VIRGINIA

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

WEATHER

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DAILY WEATHER AVERAGE - 25 JUNE

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	24.6 ^°C	30.2 ^°C	18.7 ^°C	35 ^°C (1997)	14.4 ^°C (2001)
Dewpoint	18.2 ^°C	20.6 ^°C	15.8 ^°C	23.3 ^°C (2002)	5.6 ^°C (2012)
Humidity	70.5 ^%	92 ^%	46.9 ^%		24 ^% (2012)
Barometer	1015.9 ^hPa	1018.3 ^hPa	1013.5 ^hPa	1025.1 ^hPa (2001)	1006.1 ^hPa (2012)
Wind Speed	8.7 ^km/h	20.4 ^km/h		33.3 ^km/h (2012)
Wind Gust		37.3 ^km/h		51.8 ^km/h (2004)
Precipitation	12.7 ^mm			24.89 ^mm (2015)

Weather Element	Average
Visibility	12.7 ^km
Wind Direction	SSW (195.7 °)

Weather Element	Total
Cooling Degree Days	6.1 (Base 18.3)
Growing Degree Days	14.4 (Base 10)

Total Years on Record: 20

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