Frost dates in Mountrail County, North Dakota
The average last spring frost in Mountrail County falls May 11 to May 20 and the average first fall frost Sep 20 to Sep 26, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4a. Places: New Town, Palermo, Parshall, Plaza, Ross, Stanley. 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 |
|---|---|---|---|---|
| 58763 | New Town | May 20 | Sep 20 | 4a |
| 58769 | Palermo | May 17 | Sep 23 | 4a |
| 58770 | Parshall | May 20 | Sep 20 | 4a |
| 58771 | Plaza | May 17 | Sep 23 | 4a |
| 58776 | Ross | May 17 | Sep 23 | 4a |
| 58784 | Stanley | May 17 | Sep 23 | 4a |
| 58794 | White Earth | May 11 | Sep 26 | 4a |
Nearby counties
Ward County Burke County Williams County Renville County McKenzie County Dunn County
All North Dakota counties · Download North Dakota frost dates (CSV)
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