HERNDON, VIRGINIA

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

WEATHER

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DAILY WEATHER AVERAGE - 26 MARCH

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	8.9 ^°C	14.1 ^°C	3.2 ^°C	25.6 ^°C (2004)	-4 ^°C (2014)
Dewpoint	0.1 ^°C	5.1 ^°C	-3.8 ^°C	14.4 ^°C (2015)	-13.3 ^°C (1995)
Humidity	58.3 ^%	84.1 ^%	37.2 ^%		18 ^% (1995)
Barometer	1017.6 ^hPa	1022.7 ^hPa	1013.2 ^hPa	1031.8 ^hPa (2007)	1001.7 ^hPa (2010)
Wind Speed	16.3 ^km/h	29.5 ^km/h		44.4 ^km/h (2014)
Wind Gust		44.6 ^km/h		64.9 ^km/h (2012)
Precipitation	15.75 ^mm			52.83 ^mm (2002)

Weather Element	Average
Visibility	16.3 ^km
Wind Direction	SW (223.7 °)

Weather Element	Total
Heating Degree Days	9.7 (Base 18.3)
Growing Degree Days	3.1 (Base 10)

Total Years on Record: 21

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