Frost dates in Grand Forks County, North Dakota
The average last spring frost in Grand Forks County falls May 10 to May 16 and the average first fall frost Sep 27 to Oct 1, depending on the ZIP code (50% odds, 32°F, NOAA 1991–2020 normals). USDA hardiness zone 4a. Places: Emerado, Gilby, Grand Forks, Grand Forks AFB, Inkster, Larimore. 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 |
|---|---|---|---|---|
| 58201 | Grand Forks | May 10 | Oct 1 | 4a |
| 58202 | Grand Forks | May 10 | Oct 1 | 4a |
| 58203 | Grand Forks | May 16 | Sep 27 | 4a |
| 58204 | Grand Forks AFB | May 16 | Sep 27 | 4a |
| 58205 | Grand Forks AFB | May 16 | Sep 27 | 4a |
| 58214 | May 11 | Sep 28 | 4a | |
| 58228 | Emerado | May 16 | Sep 27 | 4a |
| 58235 | Gilby | May 16 | Sep 27 | 4a |
| 58244 | Inkster | May 11 | Sep 28 | 4a |
| 58251 | Larimore | May 11 | Sep 28 | 4a |
| 58256 | Manvel | May 16 | Sep 27 | 4a |
| 58258 | May 16 | Sep 27 | 4a | |
| 58266 | Niagara | May 11 | Sep 28 | 4a |
| 58267 | Northwood | May 11 | Sep 28 | 4a |
| 58275 | Reynolds | May 10 | Oct 1 | 4a |
| 58278 | Thompson | May 10 | Oct 1 | 4a |
Nearby counties
Walsh County Steele County Nelson County Traill County Griggs County Pembina County
All North Dakota counties · Download North Dakota frost dates (CSV)
Never miss a frost: get The Dial
Weekly yard timing, plus frost and soil-temperature alerts for your ZIP code.
- Freeze alerts
- Soil-temp heads-up
- Weekly yard to-dos
Free. One weekly email plus alerts when your ZIP has a frost or a soil-temperature change worth acting on. After you submit, Kit (our email provider) sends a confirmation email: check your email and click the link to confirm. You aren't subscribed until you do. We collect only your email address and ZIP, sent to Kit to deliver The Dial. Unsubscribe anytime.