Average Annual Snowfall in Illinois
The tables below give yearly averages for snowfall at cities in Illinois. The numbers are for the total amount of snow and for how many days it snows at least 0.1 inches (0.25 centimetres).
The snowfall totals are annual 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.
Place name links take you to more detailed information on snowfall, snowstorms and snow accumulation for that location.
Chicago Area
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 17.5 | Aurora | 27.1 | 68.8 |
| 22.3 | Chicago Botanical Garden | 33.4 | 84.8 |
| 26.7 | Chicago Midway Airport | 37.1 | 94.2 |
| 28.5 | Chicago O'Hare Airport | 36.7 | 93.2 |
| 18.5 | Elgin | 29.0 | 73.7 |
Northern Illinois
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 21.1 | Antioch | 42.7 | 108.5 |
| 23.9 | DeKalb | 31.9 | 81.0 |
| 16.8 | Dixon | 30.2 | 76.7 |
| 19.0 | Freeport | 31.3 | 79.5 |
| 25.1 | Moline | 31.6 | 80.3 |
| 28.8 | Rockford | 36.7 | 93.2 |
Central Illinois
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 8.3 | Cahokia | 15.1 | 38.4 |
| 10.8 | Danville | 17.9 | 45.5 |
| 19.9 | Peoria | 24.6 | 62.5 |
| 16.4 | Quincy | 22.3 | 56.6 |
| 16.9 | Springfield | 20.9 | 53.1 |
| 18.2 | Urbana | 23.2 | 58.9 |
Southern Illinois
| Days | Place | Inches | Centimetres |
|---|---|---|---|
| 3.5 | Cairo | 4.4 | 11.2 |
| 7.4 | Marion | 14.4 | 36.6 |
| 6.9 | Mt Vernon | 13.9 | 35.3 |
Reference
National Climatic Data Center. NOAA's 1981-2010 Climate Normals.