MERCERSBURG, PENNSYLVANIA

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Elevation: 617 feet Latitude: 39 49N Longitude: 077 54W

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DAILY WEATHER AVERAGE - DECEMBER 20

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	32.4 ^°F	38.6 ^°F	26 ^°F	55.4 ^°F (1997)	6.1 ^°F (2004)
Dewpoint	19.6 ^°F	24.2 ^°F	16.2 ^°F	42.1 ^°F (2011)	-11 ^°F (2005)
Humidity	61.1 ^%	74.4 ^%	49 ^%		29 ^% (2005)
Barometer	30.12 ⁱⁿ	30.22 ⁱⁿ	30.00 ⁱⁿ	30.62 ⁱⁿ (2015)	29.47 ⁱⁿ (2002)
Wind Speed	8.8 ^mph	16.2 ^mph		33.4 ^mph (2001)
Wind Gust		26.5 ^mph		38 ^mph (2001)
Precipitation	0.26 ⁱⁿ			0.53 ⁱⁿ (2002)

Weather Element	Average
Visibility	10.2 ^mi
Wind Direction	SSW (215.6 °)

Weather Element	Total
Heating Degree Days	32.8 (Base 18.3)

Total Years on Record: 20

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