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Planting calendar for ZIP 82435 (Powell, WY)

When to plant vegetables in Powell, WY (USDA hardiness zone 5a). Typical last spring frost around May 19, 2026 12 days year to year), first fall frost around Sep 20, 20269 days).

Playing it safe? Spring frost holds off until about Jun 3, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Powell, WY

February

March

April

May

June

July

Understand your frost dates

Frost dates for ZIP 82435: NOAA 1991-2020 normals (USC00487388 POWELL FLD STN, WY US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.