Frost dates in Polk County, Iowa
The average last spring frost in Polk County falls Apr 18 to Apr 26 and the average first fall frost Oct 12 to Oct 20, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5b. Places: Alleman, Altoona, Ankeny, Bondurant, Clive, Des Moines. 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 |
|---|---|---|---|---|
| 50007 | Alleman | Apr 23 | Oct 15 | 5b |
| 50009 | Altoona | Apr 21 | Oct 15 | 5b |
| 50021 | Ankeny | Apr 23 | Oct 15 | 5b |
| 50023 | Ankeny | Apr 23 | Oct 15 | 5b |
| 50032 | Apr 23 | Oct 15 | 5b | |
| 50035 | Bondurant | Apr 23 | Oct 15 | 5b |
| 50073 | Elkhart | Apr 23 | Oct 15 | 5b |
| 50109 | Granger | Apr 19 | Oct 18 | 5b |
| 50111 | Grimes | Apr 19 | Oct 18 | 5b |
| 50131 | Johnston | Apr 19 | Oct 18 | 5b |
| 50161 | Maxwell | Apr 26 | Oct 12 | 5b |
| 50169 | Mitchellville | Apr 21 | Oct 15 | 5b |
| 50226 | Polk City | Apr 19 | Oct 18 | 5b |
| 50237 | Runnells | Apr 21 | Oct 15 | 5b |
| 50243 | Sheldahl | Apr 19 | Oct 18 | 5b |
| 50244 | Slater | Apr 23 | Oct 15 | 5b |
| 50265 | West Des Moines | Apr 18 | Oct 20 | 5b |
| 50309 | Des Moines | Apr 18 | Oct 20 | 5b |
| 50310 | Des Moines | Apr 18 | Oct 20 | 5b |
| 50311 | Des Moines | Apr 18 | Oct 20 | 5b |
| 50312 | Des Moines | Apr 18 | Oct 20 | 5b |
| 50313 | Des Moines | Apr 23 | Oct 15 | 5b |
| 50314 | Des Moines | Apr 18 | Oct 20 | 5b |
| 50315 | Des Moines | Apr 18 | Oct 20 | 5b |
| 50316 | Des Moines | Apr 18 | Oct 20 | 5b |
| 50317 | Des Moines | Apr 18 | Oct 20 | 5b |
| 50319 | Des Moines | Apr 18 | Oct 20 | 5b |
| 50320 | Des Moines | Apr 18 | Oct 20 | 5b |
| 50321 | Des Moines | Apr 18 | Oct 20 | 5b |
| 50322 | Urbandale | Apr 19 | Oct 18 | 5b |
| 50324 | Windsor Heights | Apr 18 | Oct 20 | 5b |
| 50325 | Clive | Apr 18 | Oct 20 | 5b |
| 50327 | Pleasant Hill | Apr 18 | Oct 20 | 5b |
Nearby counties
Dallas County Warren County Story County Jasper County Madison County Boone County
All Iowa counties · Download Iowa frost dates (CSV)
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