HERNDON, VIRGINIA

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Elevation: 98 meters Latitude: 38 57N Longitude: 077 27W

WEATHER

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DAILY WEATHER AVERAGE - 17 FEBRUARY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	2.1 ^°C	6.5 ^°C	-3.1 ^°C	21.7 ^°C (2011)	-13.9 ^°C (2007)
Dewpoint	-5.2 ^°C	-1.2 ^°C	-9.3 ^°C	12 ^°C (1998)	-16.1 ^°C (2011)
Humidity	61.9 ^%	79 ^%	43.6 ^%		26 ^% (2011)
Barometer	1019.3 ^hPa	1024.4 ^hPa	1014.2 ^hPa	1037.3 ^hPa (1997)	999.3 ^hPa (1998)
Wind Speed	15.1 ^km/h	28 ^km/h		51.8 ^km/h (2006)
Wind Gust		50.2 ^km/h		68.6 ^km/h (2013)
Precipitation	26.16 ^mm			90.93 ^mm (1998)

Weather Element	Average
Visibility	15.1 ^km
Wind Direction	WSW (236.3 °)

Weather Element	Total
Heating Degree Days	16.7 (Base 18.3)
Growing Degree Days	3.1 (Base 10)

Total Years on Record: 21

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