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Planting calendar for ZIP 83111 (Auburn, WY)

When to plant vegetables in Auburn, WY (USDA hardiness zone 4b). Typical last spring frost around Jun 20, 2026 14 days year to year), first fall frost around Sep 1, 202613 days).

Playing it safe? Spring frost holds off until about Jul 7, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Auburn, WY planting calendar for dates typical of the whole city.

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Month by month in Auburn, WY

March

April

May

June

July

Understand your frost dates

Frost dates for ZIP 83111: NOAA 1991-2020 normals (USC00480027 AFTON, WY US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.