HARPERS FERRY, WEST VIRGINIA

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Elevation: 12 meters Latitude: 39 19N Longitude: 077 44W

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DAILY WEATHER AVERAGE - 9 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	1.7 ^°C	5.9 ^°C	-2.6 ^°C	13 ^°C (1999)	-10.6 ^°C (2002)
Dewpoint	-3.1 ^°C	0.2 ^°C	-6.6 ^°C	9.4 ^°C (2008)	-18.9 ^°C (2006)
Humidity	73.5 ^%	90.6 ^%	53.7 ^%		19 ^% (2006)
Barometer	1021.7 ^hPa	1026.4 ^hPa	1016.3 ^hPa	1037.3 ^hPa (2002)	988.8 ^hPa (2009)
Wind Speed	7.6 ^km/h	19.8 ^km/h		40.7 ^km/h (2005)
Wind Gust		49.4 ^km/h		83.4 ^km/h (2005)
Precipitation	26.67 ^mm			77.98 ^mm (2009)

Weather Element	Average
Visibility	11.4 ^km
Wind Direction	SE (133 °)

Weather Element	Total
Heating Degree Days	16.7 (Base 18.3)

Total Years on Record: 21

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