DULLES, VIRGINIA

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

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DAILY WEATHER AVERAGE - 22 JUNE

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	23.8 ^°C	29.6 ^°C	18.7 ^°C	35 ^°C (2006)	13.9 ^°C (2002)
Dewpoint	17.8 ^°C	20.1 ^°C	15.6 ^°C	24.4 ^°C (1998)	6.1 ^°C (2007)
Humidity	71.6 ^%	92.3 ^%	47.8 ^%		26 ^% (2007)
Barometer	1014.9 ^hPa	1016.9 ^hPa	1012.9 ^hPa	1029.1 ^hPa (2002)	1004.1 ^hPa (2009)
Wind Speed	10.3 ^km/h	23.3 ^km/h		46.3 ^km/h (2012)
Wind Gust		45.4 ^km/h		72.3 ^km/h (2012)
Precipitation	39.88 ^mm			167.89 ^mm (2001)

Weather Element	Average
Visibility	13.4 ^km
Wind Direction	SSW (195 °)

Weather Element	Total
Cooling Degree Days	5.9 (Base 18.3)
Growing Degree Days	14.2 (Base 10)

Total Years on Record: 21

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