# Frost dates for Flint, MI (48502)

**Do this (Safe, 2026-11-02):** Frost season started Sep 30. Keep covers ready for cold nights.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | May 20 | Sep 30 | 133 |
| Median | May 3 | Oct 13 | 163 |
| Bold (9 in 10 years later) | Apr 20 | Oct 27 | 190 |

Frost = 32°F. Station: Flint 7W, MI, 4 mi away.

## Next nights (NWS overnight low)

- 2026-11-02: 57°F — Go (tonight)
- 2026-11-03: 62°F — Go
- 2026-11-04: 52°F — Go
- 2026-11-05: 46°F — Go
- 2026-11-06: 39°F — Wait
- 2026-11-07: 34°F — Cover
- 2026-11-08: 36°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 Flint 7W, MI (4 mi, 121 ft lower than you). Not endorsed by NOAA. Nights: National Weather Service.

Page: https://frostdatecalculator.com/p/mi/flint · JSON: https://frostdatecalculator.com/p/mi/flint?format=json