# Frost dates for Cottage Grove, MN (55016)

**Do this (Safe, 2026-11-02):** Frost season started Oct 5. Keep covers ready for cold nights.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | May 7 | Oct 5 | 151 |
| Median | Apr 23 | Oct 19 | 179 |
| Bold (9 in 10 years later) | Apr 8 | Nov 1 | 207 |

Frost = 32°F. Station: Hastings Dam 2, MN, 4 mi away.

## Next nights (NWS overnight low)

- 2026-11-01: 58°F — Go (tonight)
- 2026-11-02: 59°F — Go
- 2026-11-03: 49°F — Go
- 2026-11-04: 45°F — Go
- 2026-11-05: 39°F — Wait
- 2026-11-06: 37°F — Wait
- 2026-11-07: 39°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 Hastings Dam 2, MN (4 mi, 167 ft lower than you). Not endorsed by NOAA. Nights: National Weather Service.

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