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Planting calendar for ZIP 82649 (Shoshoni, WY)

When to plant vegetables in Shoshoni, WY (USDA hardiness zone 4b). Typical last spring frost around May 7, 2026 8 days year to year), first fall frost around Oct 3, 20269 days).

Playing it safe? Spring frost holds off until about May 17, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Shoshoni, WY

January

February

March

April

May

July

August

Understand your frost dates

Frost dates for ZIP 82649: NOAA 1991-2020 normals (USC00488209 SHOSHONI, WY US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.