CHICAGO, ILLINOIS

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Elevation: 205 meters Latitude: 41 59N Longitude: 087 54W

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DAILY WEATHER AVERAGE - 18 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-2.1 ^°C	1.2 ^°C	-6.2 ^°C	13 ^°C (2002)	(2000)
Dewpoint	-5.9 ^°C	-3 ^°C	-7.3 ^°C	12.8 ^°C (2002)	-16.1 ^°C (2013)
Humidity	75.6 ^%	87.1 ^%	62.3 ^%		46 ^% (1998)
Barometer	1017.9 ^hPa	1021.3 ^hPa	1014.6 ^hPa	1037.9 ^hPa (2005)	1002.7 ^hPa (2002)
Wind Speed	13.8 ^km/h	23.7 ^km/h		48.1 ^km/h (2002)
Wind Gust		41.2 ^km/h		61.2 ^km/h (2002)
Precipitation	7.87 ^mm			44.96 ^mm (2002)

Weather Element	Average
Visibility	13 ^km
Wind Direction	SSW (200.8 °)

Weather Element	Total
Heating Degree Days	20.8 (Base 18.3)

Total Years on Record: 21

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