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San Rafael, CA planting calendar

When to plant vegetables in San Rafael, CA (USDA hardiness zone 9b). Typical last spring frost around Jan 11, 2026 (±29 days year to year), first fall frost around Dec 21, 2026 (±27 days).

Playing it safe? Spring frost holds off until about Feb 17, 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 San Rafael, CA’s first frost (~Dec 21, 2026) — fastest first.

Month by month in San Rafael, CA

January

February

March

October

November

December

Understand your frost dates

More California planting calendars

ZIP codes in San Rafael

94901, 94903

Where these dates come from

Frost dates for San Rafael, 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.