Frost dates in Warren County, Illinois
The average last spring frost in Warren County falls Apr 17 to Apr 22 and the average first fall frost Oct 14 to Oct 22, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5b. Places: Cameron, Kirkwood, Little York, Monmouth, Roseville. 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 |
|---|---|---|---|---|
| 61417 | Apr 22 | Oct 15 | 5b | |
| 61423 | Cameron | Apr 20 | Oct 19 | 5b |
| 61435 | Apr 22 | Oct 15 | 5b | |
| 61447 | Kirkwood | Apr 22 | Oct 14 | 5b |
| 61453 | Little York | Apr 22 | Oct 14 | 5b |
| 61462 | Monmouth | Apr 22 | Oct 15 | 5b |
| 61473 | Roseville | Apr 17 | Oct 22 | 5b |
| 61478 | Apr 22 | Oct 14 | 5b |
Nearby counties
Henderson County Knox County Mercer County McDonough County Fulton County Henry County
All Illinois counties · Download Illinois frost dates (CSV)
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