Frost dates in Carter County, Montana
The average last spring frost in Carter County falls May 17 to Jun 2 and the average first fall frost Sep 6 to Sep 24, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b. Places: Alzada, Ekalaka. 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 |
|---|---|---|---|---|
| 59311 | Alzada | Jun 2 | Sep 6 | 4b |
| 59319 | May 17 | Sep 24 | 4b | |
| 59324 | Ekalaka | May 20 | Sep 23 | 4b |
| 59332 | May 17 | Sep 22 | 4b |
Nearby counties
Powder River County Fallon County Custer County Prairie County Wibaux County Rosebud County
All Montana counties · Download Montana frost dates (CSV)
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