Frost dates in Douglas County, South Dakota
The average last spring frost in Douglas County falls May 3 and the average first fall frost Oct 6, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 5a. Places: Armour, Corsica, Delmont, Harrison, New Holland. 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 |
|---|---|---|---|---|
| 57313 | Armour | May 3 | Oct 6 | 5a |
| 57328 | Corsica | May 3 | Oct 6 | 5a |
| 57330 | Delmont | May 3 | Oct 6 | 5a |
| 57344 | Harrison | May 3 | Oct 6 | 5a |
| 57364 | New Holland | May 3 | Oct 6 | 5a |
Nearby counties
Charles Mix County Aurora County Davison County Hutchinson County Gregory County Hanson County
All South Dakota counties · Download South Dakota frost dates (CSV)
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