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Planting calendar for ZIP 54629 (Fountain City, WI)

When to plant vegetables in Fountain City, WI (USDA hardiness zone 4b). Typical last spring frost around Apr 23, 2026 11 days year to year), first fall frost around Oct 21, 202611 days).

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

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

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Month by month in Fountain City, WI

January

February

March

April

May

August

Understand your frost dates

Frost dates for ZIP 54629: NOAA 1991-2020 normals (USC00219072 WINONA DAM 5 A, MN US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.