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Planting calendar for ZIP 94304 (Palo Alto, CA)

When to plant vegetables in Palo Alto, CA (USDA hardiness zone 9b). Typical last spring frost around Feb 1, 2026 26 days year to year), first fall frost around Dec 7, 202618 days).

Playing it safe? Spring frost holds off until about Mar 6, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Palo Alto, CA

January

February

March

September

October

November

December

Understand your frost dates

Frost dates for ZIP 94304: NOAA 1991-2020 normals (USC00046646 PALO ALTO, CA US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.