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Planting calendar for ZIP 94542 (Hayward, CA)

When to plant vegetables in Hayward, CA (USDA hardiness zone 9b). Typical last spring frost around Jan 2, 2026 18 days year to year), first fall frost around Dec 25, 202618 days).

Playing it safe? Spring frost holds off until about Jan 25, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Hayward, CA

January

February

October

November

December

Understand your frost dates

Frost dates for ZIP 94542: NOAA 1991-2020 normals (USW00093228 HAYWARD AIR TERMINAL, CA US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.