Frost dates in Marion County, Iowa
The average last spring frost in Marion County falls Apr 20 to Apr 24 and the average first fall frost Oct 15 to Oct 19, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5b. Places: Bussey, Harvey, Knoxville, Marysville, Melcher-Dallas, Pella. 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 |
|---|---|---|---|---|
| 50044 | Bussey | Apr 24 | Oct 16 | 5b |
| 50057 | Apr 20 | Oct 19 | 5b | |
| 50062 | Melcher-Dallas | Apr 20 | Oct 19 | 5b |
| 50116 | Marysville | Apr 20 | Oct 19 | 5b |
| 50119 | Harvey | Apr 20 | Oct 19 | 5b |
| 50138 | Knoxville | Apr 20 | Oct 19 | 5b |
| 50163 | Melcher-Dallas | Apr 20 | Oct 19 | 5b |
| 50214 | Apr 20 | Oct 19 | 5b | |
| 50219 | Pella | Apr 20 | Oct 19 | 5b |
| 50225 | Pleasantville | Apr 20 | Oct 19 | 5b |
| 50252 | Swan | Apr 21 | Oct 15 | 5b |
| 50256 | Apr 20 | Oct 19 | 5b |
Nearby counties
Monroe County Lucas County Jasper County Warren County Mahaska County Wapello County
All Iowa counties · Download Iowa frost dates (CSV)
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