# Frost dates for Grand Forks, ND (58201)

**Do this (Safe, 2026-11-02):** Frost season started Sep 20. Keep covers ready for cold nights.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | May 24 | Sep 20 | 119 |
| Median | May 10 | Oct 1 | 144 |
| Bold (9 in 10 years later) | Apr 28 | Oct 15 | 170 |

Frost = 32°F. Station: Grand Forks Univ (nws), ND, 0 mi away.

## Next nights (NWS overnight low)

- 2026-11-01: 54°F — Go (tonight)
- 2026-11-02: 41°F — Go
- 2026-11-03: 37°F — Wait
- 2026-11-04: 31°F — Cover
- 2026-11-05: 26°F — Cover
- 2026-11-06: 30°F — Cover
- 2026-11-07: 32°F — Cover

Go above 40°F · Wait 37–40°F · Cover 36°F or less · Freeze 28°F or less.

Source: Frost dates: NOAA NCEI U.S. Climate Normals 1991–2020, station Grand Forks Univ (nws), ND (0 mi, about your height). Not endorsed by NOAA. Nights: National Weather Service.

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