Frost dates for 91361 — Westlake Village, CA
Frost is light and occasional here — typically a few cold nights around midwinter (about 1 a year). Cover tender plants when frost is forecast.
How Westlake Village compares
- In a typical year, frost nights in Westlake Village fall between December 28 and December 31. In 1 year in 10 the first frost comes as early as December 7, or the last frost as late as February 2.
- Westlake Village shares its weather station with Thousand Oaks, CA, 5 km away, so the two have the same frost dates.
Frost probability
| Chance of frost after | Date |
|---|---|
| 90% (early) | December 11 |
| 50% (median) | December 31 |
| 10% (safe for tender plants) | February 2 |
| Chance of frost before | Date |
|---|---|
| 10% (early) | December 7 |
| 50% (median) | December 28 |
| 90% (late) | January 29 |
Frost here means 32°F (0°C). A median date means half of years have their last frost earlier and half later.
Gardening where frost is rare
Westlake Village, CA only freezes on a few winter nights, so the usual "plant after the last frost" rule doesn't apply. Heat and rainfall decide the seasons instead:
- Cool-season crops (lettuce, broccoli, peas, carrots) grow best from fall through late winter.
- Warm-season crops (tomatoes, peppers, beans, squash) do best planted in late winter to spring, and again in late summer for a fall crop — midsummer heat can stop tomatoes setting fruit.
- Heat lovers (okra, sweet potatoes, melons) can be planted through spring and early summer.
About these dates
Based on 1991–2020 NOAA climate normals for the Camarillo Ap, CA weather station, 24 km away (elevation 79 ft (24 m)).
ZIP codes in Westlake Village: 91359 91361
Frost dates near Westlake Village
- Thousand Oaks Dec 31 · Dec 28
- Agoura Hills Jan 24 · Dec 15
- Oak Park Jan 24 · Dec 15
- Newbury Park Dec 31 · Dec 28
- Malibu rare frost
- Moorpark Dec 31 · Dec 28
- Simi Valley Jan 24 · Dec 15
- Brandeis Jan 24 · Dec 15
Frequently asked questions
When is the last frost in Westlake Village, CA?
The median last spring frost in Westlake Village, CA is December 31. There is still about a 10% chance of frost after February 2, so wait until then to plant frost-tender crops like tomatoes and peppers.
When is the first frost in Westlake Village, CA?
The median first fall frost is December 28, with about a 10% chance of frost before December 7.
How long is the growing season in Westlake Village, CA?
About 362 days between the median last spring frost and first fall frost.
What planting zone is Westlake Village, CA?
Westlake Village, CA is in USDA hardiness zone 10b.