DERRY, PENNSYLVANIA

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Elevation: 403 meters Latitude: 40 20N Longitude: 079 18W

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DAILY WEATHER AVERAGE - 19 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-0.1 ^°C	3.4 ^°C	-4.7 ^°C	15 ^°C (2002)	(2013)
Dewpoint	-4.1 ^°C	-2 ^°C	-7.6 ^°C	13 ^°C (2008)	-20 ^°C (1998)
Humidity	73 ^%	86 ^%	57.9 ^%		26 ^% (1998)
Barometer	1015.9 ^hPa	1019.6 ^hPa	1013.2 ^hPa	1031.8 ^hPa (2015)	998 ^hPa (1995)
Wind Speed	14.5 ^km/h	24 ^km/h		38.9 ^km/h (2002)
Wind Gust		41.5 ^km/h		55.5 ^km/h (2011)
Precipitation	---			--- ()

Weather Element	Average
Visibility	15.6 ^km
Wind Direction	SSW (196.3 °)

Weather Element	Total
Heating Degree Days	19 (Base 18.3)

Total Years on Record: 21

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