MATTOON, ILLINOIS

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Elevation: 219 meters Latitude: 39 28N Longitude: 088 17W

WEATHER

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DAILY WEATHER AVERAGE - 18 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	0.4 ^°C	4 ^°C	-3.2 ^°C	13.9 ^°C (2002)	-15.6 ^°C (2000)
Dewpoint	-3.1 ^°C	-0.6 ^°C	-5.3 ^°C	12 ^°C (2002)	-14.4 ^°C (1998)
Humidity	78.7 ^%	91.1 ^%	63.9 ^%		44 ^% (1998)
Barometer	1018.6 ^hPa	1022 ^hPa	1014.9 ^hPa	1038.3 ^hPa (2005)	1004.1 ^hPa (2002)
Wind Speed	16.4 ^km/h	27.2 ^km/h		42.6 ^km/h (2002)
Wind Gust		47.2 ^km/h		64.9 ^km/h (2002)
Precipitation	8.64 ^mm			23.62 ^mm (2002)

Weather Element	Average
Visibility	12.9 ^km
Wind Direction	SSW (197.7 °)

Weather Element	Total
Heating Degree Days	17.9 (Base 18.3)
Growing Degree Days	2.8 (Base 10)

Total Years on Record: 19

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