HERNDON, VIRGINIA

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

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DAILY WEATHER AVERAGE - 15 MAY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	17.9 ^°C	24.2 ^°C	12.2 ^°C	30.6 ^°C (2004)	4.4 ^°C (2001)
Dewpoint	10.9 ^°C	14.2 ^°C	7.6 ^°C	20 ^°C (2014)	-2.8 ^°C (1997)
Humidity	67.9 ^%	91.9 ^%	42.7 ^%		19 ^% (1997)
Barometer	1016.3 ^hPa	1018.6 ^hPa	1013.5 ^hPa	1030.1 ^hPa (1996)	998.6 ^hPa (2011)
Wind Speed	11.3 ^km/h	22.2 ^km/h		33.3 ^km/h (1997)
Wind Gust		38.3 ^km/h		57.5 ^km/h (2014)
Precipitation	42.93 ^mm			140.72 ^mm (2003)

Weather Element	Average
Visibility	14.2 ^km
Wind Direction	SSW (195.6 °)

Total Years on Record: 21

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