LEMONT, PENNSYLVANIA

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Elevation: 357 meters Latitude: 40 48N Longitude: 077 52W

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DAILY WEATHER AVERAGE - 10 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	0.3 ^°C	3.8 ^°C	-3.2 ^°C	11 ^°C (2008)	-14.5 ^°C (1995)
Dewpoint	-4 ^°C	-0.7 ^°C	-7.4 ^°C	10 ^°C (2008)	-20.6 ^°C (2006)
Humidity	74.8 ^%	88.4 ^%	59.9 ^%		30 ^% (2006)
Barometer	1016.3 ^hPa	1020.7 ^hPa	1011.9 ^hPa	1032.5 ^hPa (2011)	994.9 ^hPa (2009)
Wind Speed	11.7 ^km/h	23.8 ^km/h		50.1 ^km/h (2009)
Wind Gust		40.2 ^km/h		68.6 ^km/h (2009)
Precipitation	7.37 ^mm			15.24 ^mm (2008)

Weather Element	Average
Visibility	16.6 ^km
Wind Direction	S (176.5 °)

Weather Element	Total
Heating Degree Days	18 (Base 18.3)

Total Years on Record: 21

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