Frost dates in Buffalo County, South Dakota
The average last spring frost in Buffalo County falls May 6 and the average first fall frost Oct 1 to Oct 5, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b. Places: Fort Thompson, Gann Valley. 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 |
|---|---|---|---|---|
| 57339 | Fort Thompson | May 6 | Oct 5 | 4b |
| 57341 | Gann Valley | May 6 | Oct 1 | 4b |
Nearby counties
Brule County Hyde County Lyman County Hand County Jerauld County Hughes County
All South Dakota counties · Download South Dakota frost dates (CSV)
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