DULLES, VIRGINIA

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

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DAILY WEATHER AVERAGE - 24 OCTOBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	12.2 ^°C	17.4 ^°C	5.7 ^°C	28.3 ^°C (2001)	-2.2 ^°C (2003)
Dewpoint	6.7 ^°C	9.3 ^°C	3.3 ^°C	20 ^°C (2009)	-3.9 ^°C (1998)
Humidity	72 ^%	90.6 ^%	52.3 ^%		27 ^% (1998)
Barometer	1018.3 ^hPa	1021.7 ^hPa	1014.6 ^hPa	1034.9 ^hPa (2008)	1002.4 ^hPa (2009)
Wind Speed	10.9 ^km/h	22.7 ^km/h		35.2 ^km/h (2009)
Wind Gust		39.6 ^km/h		53.8 ^km/h (2006)
Precipitation	27.18 ^mm			113.79 ^mm (2009)

Weather Element	Average
Visibility	15.1 ^km
Wind Direction	SSW (190.2 °)

Total Years on Record: 19

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