Frost dates in Clearwater County, Idaho
The average last spring frost in Clearwater County falls Apr 20 to Jun 3 and the average first fall frost Sep 7 to Oct 20, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a to 7a. Places: Elk River, Orofino, Pierce, Weippe. 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 |
|---|---|---|---|---|
| 83520 | Apr 20 | Oct 20 | 7a | |
| 83544 | Orofino | Apr 20 | Oct 20 | 7a |
| 83546 | Pierce | Jun 3 | Sep 7 | 6a |
| 83553 | Weippe | Jun 3 | Sep 7 | 6b |
| 83827 | Elk River | May 16 | Sep 23 | 6b |
Nearby counties
Lewis County Nez Perce County Latah County Idaho County Benewah County Shoshone County
All Idaho counties · Download Idaho frost dates (CSV)
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