Frost dates in Monroe County, Illinois
The average last spring frost in Monroe County falls Apr 6 to Apr 12 and the average first fall frost Oct 20 to Oct 30, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 7a. Places: Columbia, Hecker, Maeystown, Red Bud, Valmeyer, Waterloo. 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 |
|---|---|---|---|---|
| 62236 | Columbia | Apr 6 | Oct 27 | 7a |
| 62244 | Maeystown | Apr 9 | Oct 26 | 7a |
| 62248 | Hecker | Apr 12 | Oct 20 | 7a |
| 62256 | Maeystown | Apr 9 | Oct 26 | 7a |
| 62278 | Red Bud | Apr 8 | Oct 30 | 7a |
| 62279 | Apr 8 | Oct 30 | 7a | |
| 62295 | Valmeyer | Apr 9 | Oct 26 | 7a |
| 62298 | Waterloo | Apr 9 | Oct 26 | 7a |
Nearby counties
St. Clair County Randolph County Clinton County Madison County Perry County Washington County
All Illinois counties · Download Illinois frost dates (CSV)
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