# Frost dates for Simi Valley, CA (93065)

**Do this (Safe, 2026-11-02):** 25 days until first frost (Nov 27). Tender plants OK outdoors.

| Risk | Last spring frost | First fall frost | Frost-free days |
|---|---|---|---|
| Safe (1 in 10 years later) | Mar 5 | Nov 27 | 267 |
| Median | Jan 24 | Dec 15 | 325 |
| Bold (9 in 10 years later) | Dec 21 | Jan 26 | -329 |

Frost = 32°F. Station: Woodland Hills Pierce College, CA, 12 mi away.

## Next nights (NWS overnight low)

- 2026-11-01: 49°F — Go (tonight)
- 2026-11-02: 52°F — Go
- 2026-11-03: 48°F — Go
- 2026-11-04: 52°F — Go
- 2026-11-05: 55°F — Go
- 2026-11-06: 59°F — Go
- 2026-11-07: 60°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 Woodland Hills Pierce College, CA (12 mi, 174 ft lower than you). Not endorsed by NOAA. Nights: National Weather Service.

Page: https://frostdatecalculator.com/p/ca/simi-valley · JSON: https://frostdatecalculator.com/p/ca/simi-valley?format=json