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Planting calendar for ZIP 54875 (Springbrook, WI)

When to plant vegetables in Springbrook, WI (USDA hardiness zone 4a). Typical last spring frost around May 22, 2026 14 days year to year), first fall frost around Sep 23, 202614 days).

Playing it safe? Spring frost holds off until about Jun 8, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Springbrook, WI

February

March

April

May

June

July

Understand your frost dates

Frost dates for ZIP 54875: NOAA 1991-2020 normals (USC00473511 HAYWARD RS, WI US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.