Frost dates in Fall River County, South Dakota
The average last spring frost in Fall River County falls May 15 to May 23 and the average first fall frost Sep 20 to Sep 30, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b to 5a. Places: Angostura, Edgemont, Oelrichs, Oral, Smithwick. 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 |
|---|---|---|---|---|
| 57735 | Edgemont | May 23 | Sep 20 | 4b |
| 57747 | Angostura | May 16 | Sep 27 | 5a |
| 57763 | Oelrichs | May 15 | Sep 30 | 5a |
| 57766 | Oral | May 15 | Sep 27 | 5a |
| 57782 | Smithwick | May 15 | Sep 30 | 5a |
Nearby counties
Custer County Oglala Lakota County Pennington County Lawrence County Meade County Bennett County
All South Dakota counties · Download South Dakota frost dates (CSV)
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