DECATUR, ILLINOIS

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Elevation: 207 meters Latitude: 39 50N Longitude: 088 52W

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DAILY WEATHER AVERAGE - 19 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-0.9 ^°C	2.6 ^°C	-4 ^°C	14 ^°C (1997)	-16.1 ^°C (2000)
Dewpoint	-3.8 ^°C	-0.6 ^°C	-5.6 ^°C	12 ^°C (2002)	-17 ^°C (1997)
Humidity	81.3 ^%	93 ^%	65.1 ^%		31 ^% (1997)
Barometer	1018.6 ^hPa	1022.7 ^hPa	1014.6 ^hPa	1038.3 ^hPa (2005)	1003.4 ^hPa (2008)
Wind Speed	16.3 ^km/h	26.7 ^km/h		38.9 ^km/h (2004)
Wind Gust		46.2 ^km/h		53.8 ^km/h (2008)
Precipitation	10.67 ^mm			36.07 ^mm (2008)

Weather Element	Average
Visibility	12.7 ^km
Wind Direction	SSW (205.9 °)

Weather Element	Total
Heating Degree Days	19.1 (Base 18.3)

Total Years on Record: 20

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