# Frost dates for Irvine, CA (92604)

**Do this (Safe, 2026-11-02):** 31 days until first frost (Dec 3). Tender plants OK outdoors.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | Feb 2 | Dec 3 | 304 |
| Median | Jan 5 | Dec 25 | 354 |
| Bold (9 in 10 years later) | Dec 14 | Jan 20 | -328 |

Frost = 32°F. Station: Tustin Irvine Rch, CA, 2 mi away.

## Next nights (NWS overnight low)

- 2026-11-01: 54°F — Go (tonight)
- 2026-11-02: 58°F — Go
- 2026-11-03: 57°F — Go
- 2026-11-04: 58°F — Go
- 2026-11-05: 58°F — Go
- 2026-11-06: 61°F — Go
- 2026-11-07: 63°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 Tustin Irvine Rch, CA (2 mi, 151 ft higher than you). Not endorsed by NOAA. Nights: National Weather Service.

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