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Planting calendar for ZIP 94534 (Fairfield, CA)

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, 202616 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.

See the full Fairfield, CA planting calendar for dates typical of the whole city.

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Month by month in Fairfield, CA

January

February

September

October

November

December

Understand your frost dates

Frost dates for ZIP 94534: NOAA 1991-2020 normals (USC00042934 FAIRFIELD, CA US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.