HERNDON, VIRGINIA

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

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DAILY WEATHER AVERAGE - 18 OCTOBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	12.7 ^°C	18.9 ^°C	6.6 ^°C	26.7 ^°C (2007)	0 ^°C (2004)
Dewpoint	6.7 ^°C	9.9 ^°C	3.8 ^°C	19.4 ^°C (2007)	-5 ^°C (2005)
Humidity	70.2 ^%	93.1 ^%	43.4 ^%		25 ^% (2005)
Barometer	1017.3 ^hPa	1020.3 ^hPa	1014.2 ^hPa	1031.2 ^hPa (2015)	1003.4 ^hPa (1996)
Wind Speed	10.9 ^km/h	22.5 ^km/h		38.9 ^km/h (1996)
Wind Gust		40.1 ^km/h		70.3 ^km/h (1996)
Precipitation	20.07 ^mm			40.89 ^mm (1996)

Weather Element	Average
Visibility	15 ^km
Wind Direction	SSW (215.4 °)

Total Years on Record: 20

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