Frost dates in Gallatin County, Montana
The average last spring frost in Gallatin County falls May 9 to Jun 15 and the average first fall frost Sep 10 to Sep 27, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b to 5a. Places: Belgrade, Big Sky, Bozeman, Four Corners, Gallatin River Ranch, West Yellowstone. 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 |
|---|---|---|---|---|
| 59714 | Belgrade | May 26 | Sep 16 | 5a |
| 59715 | Bozeman | May 26 | Sep 22 | 5a |
| 59718 | Four Corners | May 23 | Sep 23 | 5a |
| 59730 | Big Sky | May 21 | Sep 27 | 5a |
| 59741 | Gallatin River Ranch | May 26 | Sep 15 | 5a |
| 59752 | Wheatland | May 9 | Sep 27 | 5a |
| 59758 | West Yellowstone | Jun 15 | Sep 10 | 4b |
| 59760 | Willow Creek | May 26 | Sep 15 | 5a |
Nearby counties
Madison County Park County Broadwater County Jefferson County Meagher County Sweet Grass County
All Montana counties · Download Montana frost dates (CSV)
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