HARRISBURG-RALEI, ILLINOIS

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Elevation: 399 feet Latitude: 37 48N Longitude: 088 32W

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DAILY WEATHER AVERAGE - DECEMBER 18

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	38 ^°F	46.2 ^°F	29.3 ^°F	60.8 ^°F (2002)	(2012)
Dewpoint	31.1 ^°F	37.6 ^°F	26 ^°F	55.4 ^°F (2006)	14.9 ^°F (2013)
Humidity	77.2 ^%	94.3 ^%	58.9 ^%		32 ^% (2012)
Barometer	30.12 ⁱⁿ	30.21 ⁱⁿ	30.01 ⁱⁿ	30.61 ⁱⁿ (2005)	29.74 ⁱⁿ (2002)
Wind Speed	6.6 ^mph	13.9 ^mph		26.5 ^mph (2002)
Wind Gust		24.4 ^mph		38 ^mph (2002)
Precipitation	0.50 ⁱⁿ			2.29 ⁱⁿ (2002)

Weather Element	Average
Visibility	8.5 ^mi
Wind Direction	SSE (149.8 °)

Weather Element	Total
Heating Degree Days	27.2 (Base 18.3)
Growing Degree Days	4.1 (Base 10)

Total Years on Record: 15

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