Frost dates in Treasure County, Montana
The average last spring frost in Treasure County falls May 10 to May 26 and the average first fall frost Sep 16 to Sep 29, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b. Places: Hysham. 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 |
|---|---|---|---|---|
| 59010 | May 26 | Sep 16 | 4b | |
| 59038 | Hysham | May 10 | Sep 29 | 4b |
| 59076 | May 10 | Sep 29 | 4b |
Nearby counties
Rosebud County Big Horn County Musselshell County Yellowstone County Garfield County Petroleum County
All Montana counties · Download Montana frost dates (CSV)
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