JOLIET, ILLINOIS

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Elevation: 582 feet Latitude: 41 31N Longitude: 088 10W

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DAILY WEATHER AVERAGE - DECEMBER 15

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	30.7 ^°F	37.5 ^°F	23.7 ^°F	55.9 ^°F (2011)	-2.2 ^°F (2010)
Dewpoint	25.3 ^°F	31.9 ^°F	18.7 ^°F	51.8 ^°F (2011)	-7.6 ^°F (2004)
Humidity	81.1 ^%	92.1 ^%	67.5 ^%		44 ^% (2004)
Barometer	30.01 ⁱⁿ	30.18 ⁱⁿ	29.80 ⁱⁿ	30.64 ⁱⁿ (2008)	29.57 ⁱⁿ (2012)
Wind Speed	8.2 ^mph	15.4 ^mph		21.9 ^mph (2008)
Wind Gust		24.1 ^mph		31.1 ^mph (2011)
Precipitation	0.14 ⁱⁿ			0.41 ⁱⁿ (2012)

Weather Element	Average
Visibility	7.8 ^mi
Wind Direction	S (179.2 °)

Weather Element	Total
Heating Degree Days	34.4 (Base 18.3)

Total Years on Record: 15

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