# Frost dates for Sammamish, WA (98075)

**Do this (Safe, 2026-11-02):** Frost season started Oct 22. Keep covers ready for cold nights.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | Apr 21 | Oct 22 | 184 |
| Median | Mar 30 | Nov 7 | 222 |
| Bold (9 in 10 years later) | Mar 4 | Dec 1 | 272 |

Frost = 32°F. Station: Snoqualmie Falls, WA, 10 mi away.

## Next nights (NWS overnight low)

- 2026-11-01: 38°F — Wait (tonight)
- 2026-11-02: 43°F — Go
- 2026-11-03: 39°F — Wait
- 2026-11-04: 46°F — Go
- 2026-11-05: 45°F — Go
- 2026-11-06: 43°F — Go
- 2026-11-07: 47°F — Go

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 Snoqualmie Falls, WA (10 mi, about your height). Not endorsed by NOAA. Nights: National Weather Service.

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