Frost dates in Sioux County, North Dakota
The average last spring frost in Sioux County falls May 12 and the average first fall frost Sep 24 to Sep 28, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4a to 4b. Places: Cannon Ball, Selfridge. 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 |
|---|---|---|---|---|
| 58528 | Cannon Ball | May 12 | Sep 24 | 4a |
| 58538 | Cannon Ball | May 12 | Sep 28 | 4a |
| 58568 | Selfridge | May 12 | Sep 24 | 4b |
Nearby counties
Emmons County Grant County Morton County Burleigh County McIntosh County Oliver County
All North Dakota counties · Download North Dakota frost dates (CSV)
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