DERRY, PENNSYLVANIA

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

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DAILY WEATHER AVERAGE - 21 JANUARY

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-4.1 ^°C	-1.1 ^°C	-8.2 ^°C	11 ^°C (2006)	-17 ^°C (2003)
Dewpoint	-9.4 ^°C	-6.4 ^°C	-12.7 ^°C	9 ^°C (2006)	-23 ^°C (1997)
Humidity	69.3 ^%	84.5 ^%	54.1 ^%		4 ^% (1997)
Barometer	1019.3 ^hPa	1022.7 ^hPa	1015.6 ^hPa	1040.6 ^hPa (2008)	999 ^hPa (1995)
Wind Speed	13.2 ^km/h	22.5 ^km/h		48.1 ^km/h (2011)
Wind Gust		42 ^km/h		59.2 ^km/h (2011)
Precipitation	0.25 ^mm			0.25 ^mm (2015)

Weather Element	Average
Visibility	15.9 ^km
Wind Direction	SSE (171.7 °)

Weather Element	Total
Heating Degree Days	23 (Base 18.3)

Total Years on Record: 22

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