# Frost dates for Blaine, MN (55449)

**Do this (Safe, 2026-11-02):** Frost season started Sep 18. Keep covers ready for cold nights.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | May 21 | Sep 18 | 120 |
| Median | May 5 | Oct 2 | 150 |
| Bold (9 in 10 years later) | Apr 23 | Oct 16 | 176 |

Frost = 32°F. Station: Andover 1N, MN, 7 mi away.

## Next nights (NWS overnight low)

- 2026-11-01: 58°F — Go (tonight)
- 2026-11-02: 59°F — Go
- 2026-11-03: 48°F — Go
- 2026-11-04: 44°F — Go
- 2026-11-05: 37°F — Wait
- 2026-11-06: 35°F — Cover
- 2026-11-07: 37°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 Andover 1N, MN (7 mi, about your height). Not endorsed by NOAA. Nights: National Weather Service.

Page: https://frostdatecalculator.com/p/mn/blaine · JSON: https://frostdatecalculator.com/p/mn/blaine?format=json