Frost dates in Franklin County, Idaho
The average last spring frost in Franklin County falls May 16 to Jun 17 and the average first fall frost Sep 3 to Sep 28, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a to 6b. Places: Clifton, Dayton, Franklin, Preston, Weston. 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 |
|---|---|---|---|---|
| 83228 | Clifton | May 22 | Sep 20 | 6b |
| 83232 | Dayton | May 16 | Sep 28 | 6a |
| 83237 | Franklin | May 16 | Sep 28 | 6a |
| 83263 | Preston | May 16 | Sep 28 | 6a |
| 83283 | Jun 17 | Sep 3 | 6a | |
| 83286 | Weston | May 16 | Sep 28 | 6a |
Nearby counties
Bear Lake County Oneida County Caribou County Bannock County Power County Bingham County
All Idaho counties · Download Idaho frost dates (CSV)
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