MERCERSBURG, PENNSYLVANIA

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Elevation: 188 meters Latitude: 39 49N Longitude: 077 54W

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DAILY WEATHER AVERAGE - 20 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	0.2 ^°C	3.7 ^°C	-3.3 ^°C	13 ^°C (1997)	-14.4 ^°C (2004)
Dewpoint	-6.9 ^°C	-4.3 ^°C	-8.8 ^°C	5.6 ^°C (2011)	-23.9 ^°C (2005)
Humidity	61.1 ^%	74.4 ^%	49 ^%		29 ^% (2005)
Barometer	1020 ^hPa	1023.4 ^hPa	1015.9 ^hPa	1036.9 ^hPa (2015)	998 ^hPa (2002)
Wind Speed	14.2 ^km/h	26.1 ^km/h		53.8 ^km/h (2001)
Wind Gust		42.6 ^km/h		61.2 ^km/h (2001)
Precipitation	6.6 ^mm			13.46 ^mm (2002)

Weather Element	Average
Visibility	16.4 ^km
Wind Direction	SSW (215.6 °)

Weather Element	Total
Heating Degree Days	18.2 (Base 18.3)

Total Years on Record: 20

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