# Frost dates for Concord, CA (94519)

**Do this (Safe, 2026-11-02):** 26 days until first frost (Nov 28). Tender plants OK outdoors.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | Feb 12 | Nov 28 | 289 |
| Median | Jan 9 | Dec 14 | 339 |
| Bold (9 in 10 years later) | Dec 16 | Jan 16 | -334 |

Frost = 32°F. Station: Concord Buchanan Fld, CA, 3 mi away.

## Next nights (NWS overnight low)

- 2026-11-01: 46°F — Go (tonight)
- 2026-11-02: 48°F — Go
- 2026-11-03: 47°F — Go
- 2026-11-04: 48°F — Go
- 2026-11-05: 48°F — Go
- 2026-11-06: 49°F — Go
- 2026-11-07: 50°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 Concord Buchanan Fld, CA (3 mi, 112 ft lower than you). Not endorsed by NOAA. Nights: National Weather Service.

Page: https://frostdatecalculator.com/p/ca/concord · JSON: https://frostdatecalculator.com/p/ca/concord?format=json