Frost dates in Toole County, Montana
The average last spring frost in Toole County falls May 17 to May 23 and the average first fall frost Sep 14 to Sep 25, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4a. Places: Eagle Creek Colony, Kevin, Shelby, Sunburst, Sweet Grass. 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 |
|---|---|---|---|---|
| 59435 | May 23 | Sep 16 | 4a | |
| 59444 | Eagle Creek Colony | May 23 | Sep 14 | 4a |
| 59454 | Kevin | May 17 | Sep 25 | 4a |
| 59466 | May 17 | Sep 25 | 4a | |
| 59474 | Shelby | May 23 | Sep 16 | 4a |
| 59482 | Sunburst | May 17 | Sep 25 | 4a |
| 59484 | Sweet Grass | May 17 | Sep 25 | 4a |
Nearby counties
Liberty County Pondera County Teton County Glacier County Hill County Chouteau County
All Montana counties · Download Montana frost dates (CSV)
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