Frost dates in Black Hawk County, Iowa
The average last spring frost in Black Hawk County falls Apr 27 to May 3 and the average first fall frost Oct 3 to Oct 10, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5a. Places: Cedar Falls, Dunkerton, Evansdale, Gilbertville, Jesup, La Porte City. 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 |
|---|---|---|---|---|
| 50613 | Cedar Falls | Apr 27 | Oct 10 | 5a |
| 50623 | Apr 27 | Oct 10 | 5a | |
| 50626 | Dunkerton | Apr 27 | Oct 10 | 5a |
| 50634 | Gilbertville | Apr 27 | Oct 10 | 5a |
| 50643 | Apr 27 | Oct 10 | 5a | |
| 50648 | Jesup | Apr 30 | Oct 7 | 5a |
| 50651 | La Porte City | May 3 | Oct 3 | 5a |
| 50667 | Raymond | Apr 27 | Oct 10 | 5a |
| 50701 | Waterloo | Apr 27 | Oct 10 | 5a |
| 50702 | Waterloo | Apr 27 | Oct 10 | 5a |
| 50703 | Waterloo | Apr 27 | Oct 10 | 5a |
| 50707 | Evansdale | Apr 27 | Oct 10 | 5a |
Nearby counties
Bremer County Buchanan County Grundy County Tama County Butler County Benton County
All Iowa counties · Download Iowa frost dates (CSV)
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