DECATUR, ILLINOIS

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

WEATHER

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DAILY WEATHER AVERAGE - 18 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	0.3 ^°C	4.2 ^°C	-3.9 ^°C	13.9 ^°C (2002)	-15.6 ^°C (2000)
Dewpoint	-3.3 ^°C	-0.6 ^°C	-6.2 ^°C	12 ^°C (2002)	-16.1 ^°C (1998)
Humidity	77.8 ^%	90.8 ^%	61.7 ^%		40 ^% (1998)
Barometer	1017.6 ^hPa	1021.7 ^hPa	1013.9 ^hPa	1038.6 ^hPa (2005)	1003 ^hPa (2002)
Wind Speed	18.7 ^km/h	30.6 ^km/h		50.1 ^km/h (1998)
Wind Gust		50.1 ^km/h		72.3 ^km/h (1998)
Precipitation	14.22 ^mm			98.81 ^mm (2002)

Weather Element	Average
Visibility	13.5 ^km
Wind Direction	SSW (205.2 °)

Weather Element	Total
Heating Degree Days	18.2 (Base 18.3)
Growing Degree Days	2.8 (Base 10)

Total Years on Record: 20

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