Frost dates in Pottawattamie County, Iowa
The average last spring frost in Pottawattamie County falls Apr 18 to Apr 30 and the average first fall frost Oct 2 to Oct 21, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5a to 6a. Places: Avoca, Bentley, Carson, Carter Lake, Council Bluffs, Crescent. 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 |
|---|---|---|---|---|
| 51501 | Council Bluffs | Apr 18 | Oct 21 | 5b |
| 51503 | Council Bluffs | Apr 18 | Oct 21 | 6a |
| 51510 | Carter Lake | Apr 18 | Oct 21 | 6a |
| 51521 | Avoca | Apr 27 | Oct 9 | 5b |
| 51525 | Carson | Apr 23 | Oct 14 | 5b |
| 51526 | Crescent | Apr 18 | Oct 21 | 5b |
| 51536 | Hancock | Apr 23 | Oct 14 | 5b |
| 51542 | Apr 18 | Oct 21 | 5b | |
| 51548 | McClelland | Apr 23 | Oct 14 | 5b |
| 51549 | Macedonia | Apr 23 | Oct 14 | 5b |
| 51553 | Minden | Apr 23 | Oct 14 | 5b |
| 51559 | Bentley | Apr 29 | Oct 8 | 5b |
| 51560 | Oakland | Apr 23 | Oct 14 | 5b |
| 51575 | Treynor | Apr 23 | Oct 14 | 5b |
| 51576 | Underwood | Apr 18 | Oct 21 | 5b |
| 51577 | Walnut | Apr 30 | Oct 2 | 5a |
Nearby counties
Mills County Shelby County Harrison County Montgomery County Cass County Fremont County
All Iowa counties · Download Iowa frost dates (CSV)
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