Frost dates in Gem County, Idaho
The average last spring frost in Gem County falls Apr 30 to May 31 and the average first fall frost Sep 16 to Oct 17, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 7a. Places: Emmett, Letha. 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 |
|---|---|---|---|---|
| 83617 | Emmett | Apr 30 | Oct 17 | 7a |
| 83636 | Letha | Apr 30 | Oct 17 | 7a |
| 83657 | May 31 | Sep 16 | 7a | |
| 83670 | May 31 | Sep 16 | 7a |
Nearby counties
Payette County Canyon County Ada County Boise County Washington County Adams County
All Idaho counties · Download Idaho frost dates (CSV)
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