Average Snowfall for Illinois in December





The tables below give monthly averages for snowfall during December at cities in Illinois. The numbers are for the total amount of new snow and how many days it snows at least 0.1 inches (0.25 centimetres) this month.

The snowfall totals are averages based on weather data collected from 1981 to 2010 for the NOAA National Climatic Data Center.

You can jump to a separate table for each region of the state: Chicago Area, Northern Illinois, Central Illinois and Southern Illinois.

Chicago Area

Average total snowfall in December
Days Place Inches Centi­metres
4.7 Aurora 8.6 21.8
5.6 Chicago Botanical Garden 6.5 16.5
6.7 Chicago Midway Airport 8.7 22.1
7.1 Chicago O'Hare Airport 8.5 21.6
5.2 Elgin 9.2 23.4

Northern Illinois

December snowfall averages
Days Place Inches Centi­metres
5.2 Antioch 11.1 28.2
6.5 DeKalb 8.1 20.6
4.5 Dixon 6.9 17.5
5.3 Freeport 9.7 24.6
6.8 Moline 9.3 23.6
7.7 Rockford 11.3 28.7

Central Illinois

Average snow for December
Days Place Inches Centi­metres
2.2 Cahokia 4.0 10.2
3.0 Danville 5.2 13.2
5.5 Peoria 7.1 18.0
3.6 Quincy 4.9 12.4
4.5 Springfield 5.6 14.2
5.0 Urbana 6.6 16.8

Southern Illinois

Average total snowfall in December
Days Place Inches Centi­metres
0.6 Cairo 0.8 2.0
1.8 Marion 3.0 7.6
1.5 Mt Vernon 3.6 9.1
Reference

National Climatic Data Center. NOAA's 1981-2010 Climate Normals.

Illinois Snowfall
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