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Planting calendar for ZIP 82836 (Dayton, WY)

When to plant vegetables in Dayton, WY (USDA hardiness zone 4b). Typical last spring frost around May 24, 2026 11 days year to year), first fall frost around Sep 18, 202612 days).

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

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

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Month by month in Dayton, WY

February

March

April

May

June

July

Understand your frost dates

Frost dates for ZIP 82836: NOAA 1991-2020 normals (USC00482399 DAYTON, WY US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.