GRAFTON, ILLINOIS

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Elevation: 400 feet Latitude: 38 58N Longitude: 090 26W

WEATHER

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DAILY WEATHER AVERAGE - DECEMBER 15

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	34.9 ^°F	44.1 ^°F	26.9 ^°F	62.1 ^°F (2012)	8.1 ^°F (2000)
Dewpoint	29.3 ^°F	35.8 ^°F	21.6 ^°F	55.4 ^°F (2011)	1.9 ^°F (1998)
Humidity	81.4 ^%	95.2 ^%	62.3 ^%		37 ^% (1998)
Barometer	30.04 ⁱⁿ	30.20 ⁱⁿ	29.87 ⁱⁿ	30.70 ⁱⁿ (2008)	29.58 ⁱⁿ (2012)
Wind Speed	10.1 ^mph	17.8 ^mph		27.6 ^mph (1999)
Wind Gust		28.1 ^mph		36.8 ^mph (1999)
Precipitation	0.32 ⁱⁿ			0.90 ⁱⁿ (2012)

Weather Element	Average
Visibility	7.5 ^mi
Wind Direction	SSE (166 °)

Weather Element	Total
Heating Degree Days	29.6 (Base 18.3)
Growing Degree Days	2.1 (Base 10)

Total Years on Record: 18

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