Frost dates in Park County, Montana
The average last spring frost in Park County falls May 19 to Jun 8 and the average first fall frost Sep 7 to Sep 27, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4a to 5a. Places: Clyde Park, Cooke City, Jardine, Pray, Sedan, Silver Gate. 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 |
|---|---|---|---|---|
| 59018 | Clyde Park | Jun 8 | Sep 7 | 5a |
| 59020 | Cooke City | Jun 5 | Sep 14 | 4b |
| 59027 | South Glastonbury | May 21 | Sep 27 | 5a |
| 59030 | Jardine | May 21 | Sep 27 | 4b |
| 59047 | Pray | May 19 | Sep 25 | 5a |
| 59065 | May 19 | Sep 25 | 5a | |
| 59081 | Silver Gate | Jun 5 | Sep 14 | 4a |
| 59082 | Springdale | May 27 | Sep 14 | 5a |
| 59086 | Sedan | Jun 8 | Sep 7 | 4b |
Nearby counties
Sweet Grass County Gallatin County Stillwater County Madison County Carbon County Meagher County
All Montana counties · Download Montana frost dates (CSV)
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