RESTON, VIRGINIA

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

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DAILY WEATHER AVERAGE - 14 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	3.6 ^°C	7.6 ^°C	-0.2 ^°C	20.6 ^°C (2015)	-10 ^°C (2005)
Dewpoint	-0.8 ^°C	1.6 ^°C	-4 ^°C	17.8 ^°C (2015)	-17.2 ^°C (1998)
Humidity	75.5 ^%	88.3 ^%	54.3 ^%		26 ^% (1998)
Barometer	1019 ^hPa	1024 ^hPa	1014.2 ^hPa	1033.9 ^hPa (2005)	995.3 ^hPa (2002)
Wind Speed	11.9 ^km/h	24 ^km/h		46.3 ^km/h (2010)
Wind Gust		41.8 ^km/h		68.6 ^km/h (2010)
Precipitation	16.51 ^mm			36.83 ^mm (2003)

Weather Element	Average
Visibility	11.9 ^km
Wind Direction	SSW (210 °)

Weather Element	Total
Heating Degree Days	14.7 (Base 18.3)
Growing Degree Days	6.3 (Base 10)

Total Years on Record: 21

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