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Spring Valley, CA planting calendar

When to plant vegetables in Spring Valley, CA (USDA hardiness zone 10b). Typical last spring frost around Jan 6, 2026 (±22 days year to year), first fall frost around Dec 21, 2026 (±18 days).

Playing it safe? Spring frost holds off until about Feb 3, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

These dates are typical for the whole city. Enter your ZIP for frost dates from the station nearest you:

Still time to plant

As of today, these crops can still reach harvest before Spring Valley, CA’s first frost (~Dec 21, 2026) — fastest first.

Month by month in Spring Valley, CA

January

February

October

November

December

Understand your frost dates

More California planting calendars

ZIP codes in Spring Valley

91977, 91978

Where these dates come from

Frost dates for Spring Valley, CAare NOAA 1991–2020 climate normals from a station representative of the area, which covers 2 ZIP codes. Individual ZIP codes within it can run earlier or later.

Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.