MASON CITY, ILLINOIS

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Elevation: 577 feet Latitude: 40 12N Longitude: 089 43W

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DAILY WEATHER AVERAGE - DECEMBER 18

[ °C ] °F

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	32.5 ^°F	39.9 ^°F	24.3 ^°F	57.2 ^°F (2002)	6.1 ^°F (2010)
Dewpoint	27.6 ^°F	32.8 ^°F	21.3 ^°F	55.4 ^°F (2002)	3.7 ^°F (2004)
Humidity	83.1 ^%	93.5 ^%	68.1 ^%		49 ^% (2004)
Barometer	30.07 ⁱⁿ	30.16 ⁱⁿ	29.94 ⁱⁿ	30.65 ⁱⁿ (2005)	29.56 ⁱⁿ (2002)
Wind Speed	6.4 ^mph	15.1 ^mph		32.2 ^mph (2002)
Wind Gust		27.3 ^mph		41.4 ^mph (2002)
Precipitation	0.53 ⁱⁿ			2.46 ⁱⁿ (2002)

Weather Element	Average
Visibility	8.1 ^mi
Wind Direction	SSE (169.4 °)

Weather Element	Total
Heating Degree Days	32.9 (Base 18.3)
Growing Degree Days	4.5 (Base 10)

Total Years on Record: 14

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