# Frost dates for Post Falls, ID (83854)

**Do this (Safe, 2026-11-02):** Frost season started Oct 4. Keep covers ready for cold nights.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | May 6 | Oct 4 | 151 |
| Median | Apr 22 | Oct 18 | 179 |
| Bold (9 in 10 years later) | Apr 4 | Nov 5 | 215 |

Frost = 32°F. Station: Coeur D'alene, ID, 7 mi away.

## Next nights (NWS overnight low)

- 2026-11-01: 33°F — Cover (tonight)
- 2026-11-02: 34°F — Cover
- 2026-11-03: 32°F — Cover
- 2026-11-04: 36°F — Cover
- 2026-11-05: 36°F — Cover
- 2026-11-06: 35°F — Cover
- 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 Coeur D'alene, ID (7 mi, 66 ft lower than you). Not endorsed by NOAA. Nights: National Weather Service.

Page: https://frostdatecalculator.com/p/id/post-falls · JSON: https://frostdatecalculator.com/p/id/post-falls?format=json