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Planting calendar for ZIP 54843 (Hayward, WI)

When to plant vegetables in Hayward, WI (USDA hardiness zone 4a). Typical last spring frost around May 23, 2026 13 days year to year), first fall frost around Sep 22, 202612 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 Hayward, WI planting calendar for dates typical of the whole city.

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Month by month in Hayward, WI

February

March

April

May

June

July

Understand your frost dates

Frost dates for ZIP 54843: NOAA 1991-2020 normals (USW00094973 HAYWARD MUNI AP, WI US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.