DULLES, VIRGINIA

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

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DAILY WEATHER AVERAGE - 14 MAY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	15.7 ^°C	21.4 ^°C	9.5 ^°C	31.1 ^°C (2010)	0 ^°C (1996)
Dewpoint	9.1 ^°C	11.8 ^°C	6 ^°C	21.1 ^°C (2010)	-4.4 ^°C (2007)
Humidity	68.7 ^%	91.8 ^%	45.6 ^%		24 ^% (2007)
Barometer	1017.9 ^hPa	1021 ^hPa	1015.2 ^hPa	1031.8 ^hPa (2015)	1002.4 ^hPa (2011)
Wind Speed	11.6 ^km/h	22.7 ^km/h		40.7 ^km/h (2005)
Wind Gust		42.8 ^km/h		76 ^km/h (2002)
Precipitation	21.84 ^mm			77.72 ^mm (2005)

Weather Element	Average
Visibility	13.5 ^km
Wind Direction	SSE (170.4 °)

Total Years on Record: 21

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