Frost dates in McPherson County, South Dakota
The average last spring frost in McPherson County falls May 7 to May 12 and the average first fall frost Sep 27 to Oct 3, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4b. Places: Eureka, Hosmer, Leola, Long Lake. 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 |
|---|---|---|---|---|
| 57437 | Eureka | May 12 | Sep 27 | 4b |
| 57448 | Hosmer | May 7 | Oct 3 | 4b |
| 57456 | Leola | May 9 | Sep 28 | 4b |
| 57457 | Long Lake | May 10 | Sep 30 | 4b |
Nearby counties
Edmunds County Campbell County Walworth County Faulk County Brown County Potter County
All South Dakota counties · Download South Dakota frost dates (CSV)
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