MOUNT VERNON, ILLINOIS

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Elevation: 144 meters Latitude: 38 19N Longitude: 088 51W

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DAILY WEATHER AVERAGE - 8 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	1.4 ^°C	5.4 ^°C	-3.9 ^°C	16 ^°C (2015)	(2015)
Dewpoint	-2.9 ^°C	0.6 ^°C	-7.2 ^°C	9 ^°C (2012)	-17 ^°C (2008)
Humidity	74.5 ^%	89.2 ^%	59 ^%		34 ^% (2008)
Barometer	1021.3 ^hPa	1026.1 ^hPa	1016.6 ^hPa	1042.3 ^hPa (2006)	989.5 ^hPa (2009)
Wind Speed	9 ^km/h	20.8 ^km/h		38.9 ^km/h (2008)
Wind Gust		33.3 ^km/h		46.3 ^km/h (2008)
Precipitation	45.47 ^mm			160.78 ^mm (2008)

Weather Element	Average
Visibility	13.5 ^km
Wind Direction	ESE (120 °)

Weather Element	Total
Heating Degree Days	17.6 (Base 18.3)

Total Years on Record: 21

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