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Planting calendar for ZIP 85710 (Tucson, AZ)

When to plant vegetables in Tucson, AZ (USDA hardiness zone 9b). Typical last spring frost around Jan 26, 2026 25 days year to year), first fall frost around Dec 16, 202620 days).

Playing it safe? Spring frost holds off until about Feb 27, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Tucson, AZ planting calendar for dates typical of the whole city.

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Month by month in Tucson, AZ

January

February

March

September

October

November

December

Understand your frost dates

Frost dates for ZIP 85710: NOAA 1991-2020 normals (USC00027398 SAGUARO NP, AZ US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.