Frost dates in Mercer County, Illinois
The average last spring frost in Mercer County falls Apr 14 to Apr 24 and the average first fall frost Oct 15 to Oct 24, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5b. Places: Aledo, Alexis, Buffalo Prairie, Cable, Joy, Keithsburg. 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 |
|---|---|---|---|---|
| 61231 | Aledo | Apr 22 | Oct 19 | 5b |
| 61260 | Joy | Apr 22 | Oct 19 | 5b |
| 61263 | Matherville | Apr 22 | Oct 19 | 5b |
| 61272 | New Boston | Apr 14 | Oct 24 | 5b |
| 61276 | Preemption | Apr 24 | Oct 18 | 5b |
| 61279 | Buffalo Prairie | Apr 22 | Oct 19 | 5b |
| 61281 | Cable | Apr 24 | Oct 18 | 5b |
| 61412 | Alexis | Apr 22 | Oct 15 | 5b |
| 61442 | Keithsburg | Apr 14 | Oct 24 | 5b |
| 61465 | Windsor | Apr 22 | Oct 19 | 5b |
| 61466 | North Henderson | Apr 20 | Oct 19 | 5b |
| 61476 | Seaton | Apr 22 | Oct 19 | 5b |
| 61486 | Viola | Apr 22 | Oct 19 | 5b |
Nearby counties
Rock Island County Warren County Henry County Knox County Henderson County Stark County
All Illinois counties · Download Illinois frost dates (CSV)
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