RESTON, VIRGINIA

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

WEATHER

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DAILY WEATHER AVERAGE - 2 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	4.3 ^°C	9.4 ^°C	-0.8 ^°C	19.4 ^°C (1998)	-3.9 ^°C (2011)
Dewpoint	-2.3 ^°C	1.3 ^°C	-5.4 ^°C	14 ^°C (2009)	-12.2 ^°C (1999)
Humidity	65.7 ^%	85.7 ^%	44.5 ^%		22 ^% (1999)
Barometer	1021 ^hPa	1025.7 ^hPa	1015.2 ^hPa	1035.6 ^hPa (2014)	998 ^hPa (2009)
Wind Speed	10.1 ^km/h	22.5 ^km/h		35.2 ^km/h (2003)
Wind Gust		40.2 ^km/h		51.8 ^km/h (2009)
Precipitation	11.43 ^mm			17.78 ^mm (2009)

Weather Element	Average
Visibility	15 ^km
Wind Direction	SSW (219.3 °)

Weather Element	Total
Heating Degree Days	14.1 (Base 18.3)
Growing Degree Days	0.8 (Base 10)

Total Years on Record: 21

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