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Planting calendar for ZIP 54661 (Trempealeau, WI)

When to plant vegetables in Trempealeau, WI (USDA hardiness zone 5a). Typical last spring frost around Apr 29, 2026 13 days year to year), first fall frost around Oct 11, 202612 days).

Playing it safe? Spring frost holds off until about May 15, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Trempealeau, WI planting calendar for dates typical of the whole city.

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Month by month in Trempealeau, WI

January

February

March

April

May

July

August

Understand your frost dates

Frost dates for ZIP 54661: NOAA 1991-2020 normals (USC00478589 TREMPEALEAU DAM 6, WI US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.