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Fairfield, CA planting calendar

When to plant vegetables in Fairfield, CA (USDA hardiness zone 9b). Typical last spring frost around Jan 15, 2026 (±22 days year to year), first fall frost around Dec 14, 2026 (±16 days).

Playing it safe? Spring frost holds off until about Feb 12, 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 Fairfield, CA’s first frost (~Dec 14, 2026) — fastest first.

Month by month in Fairfield, CA

January

February

October

November

December

Understand your frost dates

More California planting calendars

ZIP codes in Fairfield

94533, 94534

Where these dates come from

Frost dates for Fairfield, 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.