CHICAGO, ILLINOIS

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

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DAILY WEATHER AVERAGE - 20 DECEMBER

[ °F ] °C

Weather Element	Avg	Avg High	Avg Low	Record High	Record Low
Temperature	-2.4 ^°C	0.6 ^°C	-6.6 ^°C	10 ^°C (2015)	-17.2 ^°C (2000)
Dewpoint	-6.6 ^°C	-3.3 ^°C	-8.2 ^°C	3 ^°C (2011)	-16.7 ^°C (2003)
Humidity	75 ^%	87.7 ^%	60.7 ^%		33 ^% (2003)
Barometer	1018.6 ^hPa	1023 ^hPa	1014.9 ^hPa	1030.5 ^hPa (1998)	998 ^hPa (2002)
Wind Speed	13.7 ^km/h	23.3 ^km/h		38.9 ^km/h (2004)
Wind Gust		42 ^km/h		59.2 ^km/h (2004)
Precipitation	3.56 ^mm			11.68 ^mm (2013)

Weather Element	Average
Visibility	12.7 ^km
Wind Direction	S (185.6 °)

Weather Element	Total
Heating Degree Days	21.4 (Base 18.3)

Total Years on Record: 20

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