| Place: Temperature |
|---|
| Alton: -9°C |
| Aurora: -13°C |
| Belleville: -8°C |
| Bloomington: -12°C |
| Cahokia: -7°C |
|
|
| Centralia: -7°C |
| Champaign: -11°C |
| Chicago: -12°C |
| Danville: -11°C |
| Decatur: -11°C |
| Dekalb: -12°C |
|
|
| Flora: -8°C |
| Freeport: -13°C |
| Galesburg: -11°C |
|
|
| Jacksonville: -10°C |
| Joliet: -12°C |
| Kankakee: -12°C |
| Lacon: -11°C |
| Lawrenceville: -9°C |
|
|
| Moline: -12°C |
| Morris: -12°C |
|
|
| Paris: -11°C |
| Peoria: -11°C |
| Pittsfield: -10°C |
| Pontiac: -11°C |
| Quincy: -11°C |
| Rantoul: -11°C |
| Rochelle: -13°C |
| Rockford: -13°C |
| Salem: -9°C |
| Sparta: -7°C |
| Springfield: -10°C |
| Sterling: -12°C |
| Taylorville: -10°C |
| Waukegan: -13°C |