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Planting calendar for ZIP 82639 (Kaycee, WY)

When to plant vegetables in Kaycee, WY (USDA hardiness zone 5a). Typical last spring frost around May 18, 2026 10 days year to year), first fall frost around Sep 25, 202611 days).

Playing it safe? Spring frost holds off until about May 30, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Kaycee, WY

February

March

April

May

June

July

Understand your frost dates

Frost dates for ZIP 82639: NOAA 1991-2020 normals (USC00485055 KAYCEE, WY US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.