Frost dates in Coles County, Illinois
The average last spring frost in Coles County falls Apr 11 to Apr 15 and the average first fall frost Oct 23 to Oct 29, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a. Places: Ashmore, Charleston, Humboldt, Lerna, Mattoon, Oakland. 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 |
|---|---|---|---|---|
| 61912 | Ashmore | Apr 15 | Oct 23 | 6a |
| 61920 | Charleston | Apr 15 | Oct 23 | 6a |
| 61931 | Humboldt | Apr 11 | Oct 29 | 6a |
| 61938 | Mattoon | Apr 11 | Oct 29 | 6a |
| 61943 | Oakland | Apr 15 | Oct 23 | 6a |
| 62440 | Lerna | Apr 15 | Oct 24 | 6a |
Nearby counties
Douglas County Cumberland County Moultrie County Edgar County Clark County Shelby County
All Illinois counties · Download Illinois frost dates (CSV)
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