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Planting calendar for ZIP 94520 (Concord, CA)

When to plant vegetables in Concord, CA (USDA hardiness zone 9b). Typical last spring frost around Jan 9, 2026 23 days year to year), first fall frost around Dec 14, 202619 days).

Playing it safe? Spring frost holds off until about Feb 7, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Concord, CA

January

February

September

October

November

December

Understand your frost dates

Frost dates for ZIP 94520: NOAA 1991-2020 normals (USW00023254 CONCORD BUCHANAN FLD, CA US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.