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Planting calendar for ZIP 85920 (Alpine, AZ)

When to plant vegetables in Alpine, AZ (USDA hardiness zone 6b). Typical last spring frost around Jun 15, 2026 11 days year to year), first fall frost around Sep 21, 20269 days).

Playing it safe? Spring frost holds off until about Jun 29, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Alpine, AZ

March

April

May

June

July

Understand your frost dates

Frost dates for ZIP 85920: NOAA 1991-2020 normals (USC00020159 ALPINE, AZ US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.