HERNDON, VIRGINIA

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

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DAILY WEATHER AVERAGE - 29 SEPTEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	16.9 ^°C	21.8 ^°C	12.2 ^°C	26.1 ^°C (2015)	6.7 ^°C (2000)
Dewpoint	11.6 ^°C	14.1 ^°C	8.8 ^°C	22.8 ^°C (2015)	1.7 ^°C (2005)
Humidity	73.7 ^%	94.6 ^%	48.9 ^%		28 ^% (2005)
Barometer	1016.6 ^hPa	1019.6 ^hPa	1012.9 ^hPa	1030.8 ^hPa (2000)	997 ^hPa (1997)
Wind Speed	10 ^km/h	21.7 ^km/h		33.3 ^km/h (2005)
Wind Gust		39.9 ^km/h		51.8 ^km/h (2005)
Precipitation	30.23 ^mm			94.49 ^mm (2015)

Weather Element	Average
Visibility	14.6 ^km
Wind Direction	SSW (204.7 °)

Total Years on Record: 20

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