Frost dates in Cook County, Illinois
The average last spring frost in Cook County falls Apr 10 to Apr 30 and the average first fall frost Oct 13 to Nov 5, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5b to 6b. Places: Alsip, Arlington Heights, Barrington Hills, Bellwood, Berkeley, Berwyn. Pick a ZIP for 10% and 90% odds, soil temperature and the 7-day freeze forecast.
| ZIP | Place | Last spring frost | First fall frost | Zone |
|---|---|---|---|---|
| 60004 | Arlington Heights | Apr 19 | Oct 26 | 6a |
| 60005 | Arlington Heights | Apr 16 | Oct 28 | 6a |
| 60007 | Elk Grove Village | Apr 16 | Oct 28 | 6a |
| 60008 | Rolling Meadows | Apr 16 | Oct 28 | 6a |
| 60010 | Barrington Hills | Apr 25 | Oct 19 | 5b |
| 60016 | Des Plaines | Apr 16 | Oct 28 | 6a |
| 60018 | Chicago | Apr 16 | Oct 28 | 6a |
| 60022 | Glencoe | Apr 26 | Oct 21 | 6a |
| 60025 | Glenview | Apr 26 | Oct 21 | 6a |
| 60026 | Glenview | Apr 19 | Oct 26 | 6a |
| 60029 | Golf | Apr 26 | Oct 21 | 6a |
| 60043 | Kenilworth | Apr 26 | Oct 21 | 6a |
| 60053 | Morton Grove | Apr 26 | Oct 21 | 6a |
| 60056 | Mount Prospect | Apr 19 | Oct 26 | 6a |
| 60062 | Northbrook | Apr 19 | Oct 26 | 6a |
| 60067 | Palatine | Apr 25 | Oct 19 | 5b |
| 60068 | Park Ridge | Apr 16 | Oct 28 | 6a |
| 60070 | Prospect Heights | Apr 19 | Oct 26 | 6a |
| 60074 | Palatine | Apr 19 | Oct 26 | 5b |
| 60076 | Skokie | Apr 26 | Oct 21 | 6a |
| 60077 | Skokie | Apr 26 | Oct 21 | 6a |
| 60090 | Wheeling | Apr 19 | Oct 26 | 6a |
| 60091 | Wilmette | Apr 26 | Oct 21 | 6a |
| 60093 | Winnetka | Apr 26 | Oct 21 | 6a |
| 60104 | Bellwood | Apr 16 | Oct 28 | 6a |
| 60107 | Streamwood | Apr 30 | Oct 13 | 5b |
| 60120 | Elgin | Apr 26 | Oct 18 | 5b |
| 60130 | Forest Park | Apr 11 | Oct 31 | 6a |
| 60131 | Franklin Park | Apr 16 | Oct 28 | 6a |
| 60141 | Apr 11 | Oct 31 | 6a | |
| 60153 | Maywood | Apr 11 | Oct 31 | 6a |
| 60154 | Westchester | Apr 11 | Oct 31 | 6a |
| 60155 | Broadview | Apr 11 | Oct 31 | 6a |
| 60160 | Melrose Park | Apr 16 | Oct 28 | 6a |
| 60162 | Hillside | Apr 16 | Oct 28 | 6a |
| 60163 | Berkeley | Apr 16 | Oct 28 | 6a |
| 60164 | Northlake | Apr 16 | Oct 28 | 6a |
| 60165 | Stone Park | Apr 16 | Oct 28 | 6a |
| 60169 | Hoffman Estates | Apr 30 | Oct 13 | 5b |
| 60171 | River Grove | Apr 16 | Oct 28 | 6a |
| 60173 | Schaumburg | Apr 30 | Oct 13 | 5b |
| 60176 | Schiller Park | Apr 16 | Oct 28 | 6a |
| 60192 | Hoffman Estates | Apr 30 | Oct 13 | 5b |
| 60193 | Schaumburg | Apr 30 | Oct 13 | 5b |
| 60194 | Schaumburg | Apr 30 | Oct 13 | 5b |
| 60195 | Schaumburg | Apr 25 | Oct 19 | 5b |
| 60201 | Evanston | Apr 26 | Oct 21 | 6a |
| 60202 | Evanston | Apr 26 | Oct 21 | 6a |
| 60203 | Skokie | Apr 26 | Oct 21 | 6a |
| 60208 | Evanston | Apr 26 | Oct 21 | 6a |
| 60301 | Oak Park | Apr 11 | Oct 31 | 6a |
| 60302 | Oak Park | Apr 11 | Oct 31 | 6a |
| 60304 | Oak Park | Apr 11 | Oct 31 | 6a |
| 60305 | River Forest | Apr 11 | Oct 31 | 6a |
| 60402 | Berwyn | Apr 11 | Oct 31 | 6a |
| 60406 | Blue Island | Apr 10 | Nov 1 | 6a |
| 60409 | Calumet City | Apr 23 | Oct 20 | 6a |
| 60411 | Chicago Heights | Apr 23 | Oct 20 | 6a |
| 60415 | Chicago Ridge | Apr 10 | Nov 1 | 6a |
| 60418 | Crestwood | Apr 10 | Nov 1 | 6a |
| 60419 | Dolton | Apr 23 | Oct 20 | 6a |
| 60422 | Flossmoor | Apr 23 | Oct 20 | 6a |
| 60425 | Glenwood | Apr 23 | Oct 20 | 6a |
| 60426 | Harvey | Apr 23 | Oct 20 | 6a |
| 60428 | Markham | Apr 23 | Oct 20 | 6a |
| 60429 | Hazel Crest | Apr 23 | Oct 20 | 6a |
| 60430 | Homewood | Apr 23 | Oct 20 | 6a |
| 60438 | Lansing | Apr 23 | Oct 20 | 6a |
| 60439 | Lemont | Apr 20 | Oct 22 | 6a |
| 60443 | Matteson | Apr 23 | Oct 20 | 6a |
| 60445 | Midlothian | Apr 10 | Nov 1 | 6a |
| 60452 | Oak Forest | Apr 23 | Oct 20 | 6a |
| 60453 | Oak Lawn | Apr 10 | Nov 1 | 6a |
| 60455 | Bridgeview | Apr 10 | Nov 1 | 6a |
| 60456 | Hometown | Apr 10 | Nov 1 | 6a |
| 60457 | Hickory Hills | Apr 10 | Nov 1 | 6a |
| 60458 | Justice | Apr 10 | Nov 1 | 6a |
| 60459 | Burbank | Apr 10 | Nov 1 | 6a |
| 60461 | Olympia Fields | Apr 23 | Oct 20 | 6a |
| 60462 | Orland Park | Apr 10 | Nov 1 | 6a |
| 60463 | Palos Heights | Apr 10 | Nov 1 | 6a |
| 60464 | Palos Park | Apr 10 | Nov 1 | 6a |
| 60465 | Palos Hills | Apr 10 | Nov 1 | 6a |
| 60466 | Park Forest | Apr 23 | Oct 20 | 6a |
| 60467 | Orland Park | Apr 20 | Oct 22 | 6a |
| 60469 | Posen | Apr 10 | Nov 1 | 6a |
| 60471 | Richton Park | Apr 23 | Oct 20 | 6a |
| 60472 | Robbins | Apr 10 | Nov 1 | 6a |
| 60473 | South Holland | Apr 23 | Oct 20 | 6a |
| 60475 | Steger | Apr 23 | Oct 20 | 6a |
| 60476 | Thornton | Apr 23 | Oct 20 | 6a |
| 60477 | Tinley Park | Apr 23 | Oct 20 | 6a |
| 60478 | Country Club Hills | Apr 23 | Oct 20 | 6a |
| 60480 | Willow Springs | Apr 10 | Nov 1 | 6a |
| 60482 | Worth | Apr 10 | Nov 1 | 6a |
| 60487 | Tinley Park | Apr 23 | Oct 20 | 6a |
| 60501 | Summit | Apr 11 | Oct 31 | 6a |
| 60513 | Brookfield | Apr 11 | Oct 31 | 6a |
| 60525 | Countryside | Apr 10 | Nov 1 | 6a |
| 60526 | La Grange Park | Apr 11 | Oct 31 | 6a |
| 60534 | Lyons | Apr 11 | Oct 31 | 6a |
| 60546 | Riverside | Apr 11 | Oct 31 | 6a |
| 60558 | Western Springs | Apr 11 | Oct 31 | 6a |
| 60601 | Chicago | Apr 10 | Nov 5 | 6b |
| 60602 | Chicago | Apr 10 | Nov 5 | 6b |
| 60603 | Chicago | Apr 10 | Nov 5 | 6b |
| 60604 | Chicago | Apr 10 | Nov 5 | 6b |
| 60605 | Chicago | Apr 10 | Nov 5 | 6b |
| 60606 | Chicago | Apr 10 | Nov 5 | 6b |
| 60607 | Chicago | Apr 10 | Nov 5 | 6b |
| 60608 | Chicago | Apr 10 | Nov 5 | 6a |
| 60609 | Chicago | Apr 10 | Nov 5 | 6a |
| 60610 | Chicago | Apr 10 | Nov 5 | 6b |
| 60611 | Chicago | Apr 10 | Nov 5 | 6b |
| 60612 | Chicago | Apr 10 | Nov 5 | 6a |
| 60613 | Chicago | Apr 10 | Nov 5 | 6b |
| 60614 | Chicago | Apr 10 | Nov 5 | 6b |
| 60615 | Chicago | Apr 10 | Nov 5 | 6b |
| 60616 | Chicago | Apr 10 | Nov 5 | 6b |
| 60617 | Chicago | Apr 10 | Nov 5 | 6a |
| 60618 | Chicago | Apr 10 | Nov 5 | 6a |
| 60619 | Chicago | Apr 10 | Nov 5 | 6a |
| 60620 | Chicago | Apr 11 | Oct 31 | 6a |
| 60621 | Chicago | Apr 10 | Nov 5 | 6a |
| 60622 | Chicago | Apr 10 | Nov 5 | 6a |
| 60623 | Chicago | Apr 11 | Oct 31 | 6a |
| 60624 | Chicago | Apr 10 | Nov 5 | 6a |
| 60625 | Chicago | Apr 10 | Nov 5 | 6a |
| 60626 | Chicago | Apr 26 | Oct 21 | 6a |
| 60628 | Chicago | Apr 10 | Nov 1 | 6a |
| 60629 | Chicago | Apr 11 | Oct 31 | 6a |
| 60630 | Chicago | Apr 16 | Oct 28 | 6a |
| 60631 | Chicago | Apr 16 | Oct 28 | 6a |
| 60632 | Chicago | Apr 11 | Oct 31 | 6a |
| 60633 | Chicago | Apr 10 | Nov 1 | 6a |
| 60634 | Chicago | Apr 16 | Oct 28 | 6a |
| 60636 | Chicago | Apr 11 | Oct 31 | 6a |
| 60637 | Chicago | Apr 10 | Nov 5 | 6a |
| 60638 | Chicago | Apr 11 | Oct 31 | 6a |
| 60639 | Chicago | Apr 10 | Nov 5 | 6a |
| 60640 | Chicago | Apr 10 | Nov 5 | 6a |
| 60641 | Chicago | Apr 10 | Nov 5 | 6a |
| 60642 | Chicago | Apr 10 | Nov 5 | 6a |
| 60643 | Chicago | Apr 10 | Nov 1 | 6a |
| 60644 | Chicago | Apr 11 | Oct 31 | 6a |
| 60645 | Chicago | Apr 26 | Oct 21 | 6a |
| 60646 | Chicago | Apr 16 | Oct 28 | 6a |
| 60647 | Chicago | Apr 10 | Nov 5 | 6a |
| 60649 | Chicago | Apr 10 | Nov 5 | 6b |
| 60651 | Chicago | Apr 10 | Nov 5 | 6a |
| 60652 | Chicago | Apr 11 | Oct 31 | 6a |
| 60653 | Chicago | Apr 10 | Nov 5 | 6b |
| 60654 | Chicago | Apr 10 | Nov 5 | 6b |
| 60655 | Chicago | Apr 10 | Nov 1 | 6a |
| 60656 | Chicago | Apr 16 | Oct 28 | 6a |
| 60657 | Chicago | Apr 10 | Nov 5 | 6a |
| 60659 | Chicago | Apr 10 | Nov 5 | 6a |
| 60660 | Chicago | Apr 10 | Nov 5 | 6a |
| 60661 | Chicago | Apr 10 | Nov 5 | 6b |
| 60706 | Norridge | Apr 16 | Oct 28 | 6a |
| 60707 | Elmwood Park | Apr 16 | Oct 28 | 6a |
| 60712 | Lincolnwood | Apr 26 | Oct 21 | 6a |
| 60714 | Niles | Apr 16 | Oct 28 | 6a |
| 60803 | Alsip | Apr 10 | Nov 1 | 6a |
| 60804 | Cicero | Apr 11 | Oct 31 | 6a |
| 60805 | Evergreen Park | Apr 10 | Nov 1 | 6a |
| 60827 | Riverdale | Apr 10 | Nov 1 | 6a |
Nearby counties
DuPage County Will County Kane County Lake County Kendall County McHenry County
All Illinois counties · Download Illinois frost dates (CSV)
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