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Planting calendar for ZIP 92410 (San Bernardino, CA)

When to plant vegetables in San Bernardino, CA (USDA hardiness zone 10a). Typical last spring frost around Jan 27, 2026 27 days year to year), first fall frost around Dec 19, 202622 days).

Playing it safe? Spring frost holds off until about Mar 2, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in San Bernardino, CA

January

February

March

September

October

November

December

Understand your frost dates

Frost dates for ZIP 92410: NOAA 1991-2020 normals (USC00047306 REDLANDS, CA US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.