DULLES, VIRGINIA

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

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DAILY WEATHER AVERAGE - 26 JUNE

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	24.5 ^°C	30.2 ^°C	18.8 ^°C	34.4 ^°C (1998)	12.2 ^°C (1996)
Dewpoint	18.3 ^°C	20.5 ^°C	15.7 ^°C	25 ^°C (2002)	4.4 ^°C (2005)
Humidity	71.3 ^%	93.8 ^%	47 ^%		28 ^% (2005)
Barometer	1015.2 ^hPa	1017.6 ^hPa	1013.2 ^hPa	1028.8 ^hPa (2001)	1005.1 ^hPa (2009)
Wind Speed	9 ^km/h	24 ^km/h		74 ^km/h (2015)
Wind Gust		40.2 ^km/h		68.6 ^km/h (1997)
Precipitation	22.86 ^mm			127.76 ^mm (2006)

Weather Element	Average
Visibility	12.9 ^km
Wind Direction	SSW (200.5 °)

Weather Element	Total
Cooling Degree Days	6.2 (Base 18.3)
Growing Degree Days	14.5 (Base 10)

Total Years on Record: 20

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