Frost dates in Judith Basin County, Montana

The average last spring frost in Judith Basin County falls May 22 to Jun 15 and the average first fall frost Sep 4 to Sep 23, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b. Places: Geyser, Moccasin, Raynesford, Sapphire Ridge, Stanford. 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 |
|---|---|---|---|---|
| 59418 | Jun 1 | Sep 15 | 4b | |
| 59447 | Geyser | May 22 | Sep 23 | 4b |
| 59452 | Sapphire Ridge | Jun 15 | Sep 4 | 4b |
| 59462 | Moccasin | May 28 | Sep 20 | 4b |
| 59469 | Raynesford | May 22 | Sep 23 | 4b |
| 59479 | Stanford | May 25 | Sep 21 | 4b |
Nearby counties
Fergus County Wheatland County Meagher County Chouteau County Cascade County Golden Valley County
All Montana counties · Download Montana frost dates (CSV)
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