Frost dates in Rosebud County, Montana
The average last spring frost in Rosebud County falls May 8 to May 23 and the average first fall frost Sep 15 to Sep 30, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4a to 5a. Places: Colstrip, Forsyth, Lame Deer, Melstone, Rosebud. 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 |
|---|---|---|---|---|
| 59012 | May 23 | Sep 15 | 4b | |
| 59039 | May 21 | Sep 19 | 4b | |
| 59043 | Lame Deer | May 23 | Sep 15 | 5a |
| 59054 | Melstone | May 10 | Sep 29 | 4b |
| 59083 | May 10 | Sep 29 | 4b | |
| 59323 | Colstrip | May 15 | Sep 30 | 5a |
| 59327 | Forsyth | May 9 | Sep 29 | 4b |
| 59333 | May 8 | Sep 30 | 4a | |
| 59347 | Rosebud | May 9 | Sep 29 | 4b |
Nearby counties
Treasure County Big Horn County Custer County Garfield County Musselshell County Yellowstone County
All Montana counties · Download Montana frost dates (CSV)
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