Frost dates in Ravalli County, Montana
The average last spring frost in Ravalli County falls May 21 to May 24 and the average first fall frost Sep 19 to Sep 23, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5a to 5b. Places: Carlton, Conner, Corvallis, Darby, Hamilton, Pinesdale. 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 |
|---|---|---|---|---|
| 59827 | Conner | May 24 | Sep 23 | 5b |
| 59828 | Corvallis | May 23 | Sep 21 | 5b |
| 59829 | Darby | May 24 | Sep 23 | 5b |
| 59833 | Carlton | May 22 | Sep 19 | 5b |
| 59840 | Hamilton | May 21 | Sep 22 | 5b |
| 59841 | Pinesdale | May 23 | Sep 21 | 5b |
| 59870 | Stevensville | May 22 | Sep 19 | 5b |
| 59871 | Sula | May 24 | Sep 23 | 5a |
| 59875 | Victor | May 22 | Sep 19 | 5b |
Nearby counties
Granite County Deer Lodge County Missoula County Powell County Silver Bow County Mineral County
All Montana counties · Download Montana frost dates (CSV)
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