Frost dates in Shoshone County, Idaho
The average last spring frost in Shoshone County falls May 5 to Jun 10 and the average first fall frost Sep 5 to Oct 2, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 6a to 6b. Places: Kellogg, Mullan, Osburn, Pinehurst, Silverton, Smelterville. 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 |
|---|---|---|---|---|
| 83802 | Jun 10 | Sep 23 | 6b | |
| 83808 | May 5 | Oct 2 | 6b | |
| 83812 | May 16 | Sep 23 | 6a | |
| 83837 | Kellogg | May 14 | Sep 26 | 6b |
| 83839 | May 14 | Sep 26 | 6b | |
| 83846 | Mullan | May 12 | Sep 30 | 6a |
| 83849 | Osburn | May 5 | Oct 2 | 6b |
| 83850 | Pinehurst | May 14 | Sep 26 | 6b |
| 83867 | Silverton | May 5 | Oct 2 | 6b |
| 83868 | Smelterville | May 14 | Sep 26 | 6b |
| 83873 | Wallace | May 12 | Sep 30 | 6b |
| 83874 | May 31 | Sep 5 | 6a |
Nearby counties
Benewah County Kootenai County Latah County Clearwater County Bonner County Nez Perce County
All Idaho counties · Download Idaho frost dates (CSV)
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