DULLES, VIRGINIA

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

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DAILY WEATHER AVERAGE - 27 JUNE

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	24.2 ^°C	29.5 ^°C	19.1 ^°C	35.6 ^°C (2010)	12.2 ^°C (2004)
Dewpoint	18.5 ^°C	20.8 ^°C	16.3 ^°C	24.4 ^°C (2010)	8.3 ^°C (1997)
Humidity	73.2 ^%	93.7 ^%	52 ^%		28 ^% (1997)
Barometer	1015.2 ^hPa	1017.3 ^hPa	1012.5 ^hPa	1028.8 ^hPa (2001)	1003.4 ^hPa (2013)
Wind Speed	10 ^km/h	22 ^km/h		27.8 ^km/h (2008)
Wind Gust		37.8 ^km/h		46.3 ^km/h (2012)
Precipitation	25.15 ^mm			91.44 ^mm (2006)

Weather Element	Average
Visibility	13.2 ^km
Wind Direction	SSW (195.6 °)

Weather Element	Total
Cooling Degree Days	5.9 (Base 18.3)
Growing Degree Days	14.3 (Base 10)

Total Years on Record: 21

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