Frost dates in Pondera County, Montana
The average last spring frost in Pondera County falls May 13 to Jun 9 and the average first fall frost Sep 3 to Sep 29, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4a to 4b. Places: Brady, Conrad, Dupuyer, Heart Butte, Valier. 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 |
|---|---|---|---|---|
| 59416 | Brady | May 13 | Sep 29 | 4a |
| 59425 | Conrad | May 20 | Sep 19 | 4a |
| 59432 | Dupuyer | Jun 9 | Sep 3 | 4b |
| 59448 | Heart Butte | Jun 8 | Sep 5 | 4b |
| 59486 | Valier | May 17 | Sep 24 | 4b |
Nearby counties
Teton County Toole County Glacier County Liberty County Cascade County Chouteau County
All Montana counties · Download Montana frost dates (CSV)
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