DULLES, VIRGINIA

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

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DAILY WEATHER AVERAGE - 22 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	3.7 ^°C	8.1 ^°C	-1.2 ^°C	22 ^°C (2013)	-11.1 ^°C (2000)
Dewpoint	-2.4 ^°C	1 ^°C	-6.3 ^°C	16.1 ^°C (2013)	-21.1 ^°C (2004)
Humidity	67 ^%	81.5 ^%	49.7 ^%		27 ^% (2004)
Barometer	1020.7 ^hPa	1025.4 ^hPa	1015.9 ^hPa	1036.6 ^hPa (2008)	1003 ^hPa (2012)
Wind Speed	13.7 ^km/h	25.1 ^km/h		59.2 ^km/h (2012)
Wind Gust		51.3 ^km/h		81.4 ^km/h (2012)
Precipitation	19.81 ^mm			51.56 ^mm (2013)

Weather Element	Average
Visibility	14.6 ^km
Wind Direction	SW (225 °)

Total Years on Record: 21

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