DULLES, VIRGINIA

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

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DAILY WEATHER AVERAGE - 23 MAY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	18.3 ^°C	23.9 ^°C	12.6 ^°C	31.7 ^°C (2004)	3.9 ^°C (2002)
Dewpoint	11.3 ^°C	13.8 ^°C	9.1 ^°C	22 ^°C (2011)	-3 ^°C (2015)
Humidity	67.6 ^%	89.1 ^%	47.1 ^%		26 ^% (1997)
Barometer	1016.3 ^hPa	1018.6 ^hPa	1013.9 ^hPa	1032.2 ^hPa (2015)	1000.7 ^hPa (2005)
Wind Speed	10.6 ^km/h	21.6 ^km/h		37 ^km/h (2013)
Wind Gust		35.7 ^km/h		55.5 ^km/h (2013)
Precipitation	36.83 ^mm			143 ^mm (2010)

Weather Element	Average
Visibility	14.6 ^km
Wind Direction	SSW (189.3 °)

Total Years on Record: 21

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