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Planting calendar for ZIP 85322 (Arlington, AZ)

When to plant vegetables in Arlington, AZ (USDA hardiness zone 9b). Typical last spring frost around Jan 21, 2026 22 days year to year), first fall frost around Dec 15, 202615 days).

Playing it safe? Spring frost holds off until about Feb 18, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Arlington, AZ

January

February

March

September

October

November

December

Understand your frost dates

Frost dates for ZIP 85322: NOAA 1991-2020 normals (USC00026194 PAINTED ROCK DAM, AZ US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.