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Planting calendar for ZIP 82410 (Basin, WY)

When to plant vegetables in Basin, WY (USDA hardiness zone 4b). Typical last spring frost around Apr 28, 2026 10 days year to year), first fall frost around Oct 10, 202610 days).

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

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

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Month by month in Basin, WY

January

February

March

April

May

July

August

Understand your frost dates

Frost dates for ZIP 82410: NOAA 1991-2020 normals (USC00480540 BASIN, WY US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.