# Frost dates for Troy, MI (48085)

**Do this (Safe, 2026-11-02):** Frost season started Oct 7. Keep covers ready for cold nights.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | May 12 | Oct 7 | 148 |
| Median | Apr 26 | Oct 22 | 179 |
| Bold (9 in 10 years later) | Apr 15 | Nov 4 | 203 |

Frost = 32°F. Station: Pontiac Wwtp, MI, 7 mi away.

## Next nights (NWS overnight low)

- 2026-11-01: 50°F — Go (tonight)
- 2026-11-02: 56°F — Go
- 2026-11-03: 62°F — Go
- 2026-11-04: 53°F — Go
- 2026-11-05: 48°F — Go
- 2026-11-06: 42°F — Go
- 2026-11-07: 38°F — Wait

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 Pontiac Wwtp, MI (7 mi, 161 ft higher than you). Not endorsed by NOAA. Nights: National Weather Service.

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