Car Battery Cold-Start in Illinois
In Illinois, local car battery deadlines run from Oct 24 to Nov 15, with a median around Nov 1 — a spread of weeks that a single statewide date would miss. Find your city below; each links to local freeze odds, a live 10-day outlook, and a checklist.
Notable cities
- Schaumburg — earliest deadline in the state
- Chicago — latest deadline in the state
- Skokie — near the state median
All Illinois cities
| City | Local deadline | Median first 28°F | ||
|---|---|---|---|---|
| Schaumburg | Oct 24 | Oct 24 | View → | Checklist |
| Hoffman Estates | Oct 24 | Oct 24 | View → | Checklist |
| Bartlett | Oct 24 | Oct 24 | View → | Checklist |
| Streamwood | Oct 24 | Oct 24 | View → | Checklist |
| Hanover Park | Oct 24 | Oct 24 | View → | Checklist |
| Naperville | Oct 26 | Oct 26 | View → | Checklist |
| Wheaton | Oct 26 | Oct 26 | View → | Checklist |
| Downers Grove | Oct 26 | Oct 26 | View → | Checklist |
| Lombard | Oct 26 | Oct 26 | View → | Checklist |
| Normal | Oct 27 | Oct 27 | View → | Checklist |
| Rockford | Oct 28 | Oct 28 | View → | Checklist |
| DeKalb | Oct 28 | Oct 28 | View → | Checklist |
| Elgin | Oct 29 | Oct 29 | View → | Checklist |
| Carol Stream | Oct 29 | Oct 29 | View → | Checklist |
| Carpentersville | Oct 29 | Oct 29 | View → | Checklist |
| Waukegan | Oct 30 | Oct 30 | View → | Checklist |
| Bloomington | Oct 30 | Oct 30 | View → | Checklist |
| Palatine | Oct 30 | Oct 30 | View → | Checklist |
| Tinley Park | Oct 30 | Oct 30 | View → | Checklist |
| Belleville | Oct 30 | Oct 30 | View → | Checklist |
| Calumet City | Oct 30 | Oct 30 | View → | Checklist |
| Moline | Oct 31 | Oct 31 | View → | Checklist |
| Rock Island | Oct 31 | Oct 31 | View → | Checklist |
| Springfield | Nov 1 | Nov 1 | View → | Checklist |
| Evanston | Nov 1 | Nov 1 | View → | Checklist |
| Bolingbrook | Nov 1 | Nov 1 | View → | Checklist |
| Skokie | Nov 1 | Nov 1 | View → | Checklist |
| Orland Park | Nov 1 | Nov 1 | View → | Checklist |
| Glenview | Nov 1 | Nov 1 | View → | Checklist |
| Plainfield | Nov 1 | Nov 1 | View → | Checklist |
| Crystal Lake | Nov 1 | Nov 1 | View → | Checklist |
| Romeoville | Nov 1 | Nov 1 | View → | Checklist |
| Aurora | Nov 2 | Nov 2 | View → | Checklist |
| Peoria | Nov 2 | Nov 2 | View → | Checklist |
| Champaign | Nov 2 | Nov 2 | View → | Checklist |
| Urbana | Nov 2 | Nov 2 | View → | Checklist |
| Decatur | Nov 3 | Nov 3 | View → | Checklist |
| Joliet | Nov 4 | Nov 4 | View → | Checklist |
| Arlington Heights | Nov 7 | Nov 7 | View → | Checklist |
| Des Plaines | Nov 7 | Nov 7 | View → | Checklist |
| Mount Prospect | Nov 7 | Nov 7 | View → | Checklist |
| Elmhurst | Nov 7 | Nov 7 | View → | Checklist |
| Buffalo Grove | Nov 7 | Nov 7 | View → | Checklist |
| Wheeling | Nov 7 | Nov 7 | View → | Checklist |
| Park Ridge | Nov 7 | Nov 7 | View → | Checklist |
| Addison | Nov 7 | Nov 7 | View → | Checklist |
| Quincy | Nov 8 | Nov 8 | View → | Checklist |
| Cicero | Nov 11 | Nov 11 | View → | Checklist |
| Oak Lawn | Nov 11 | Nov 11 | View → | Checklist |
| Berwyn | Nov 11 | Nov 11 | View → | Checklist |
| Oak Park | Nov 11 | Nov 11 | View → | Checklist |
| Chicago | Nov 15 | Nov 15 | View → | Checklist |
Back to the national Car Battery Cold-Start guide, or see the methodology.
Data: NOAA NCEI 1991–2020 U.S. Climate Normals; live outlook by Open-Meteo. Last updated: July 11, 2026.