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Planting calendar for ZIP 54501 (Rhinelander, WI)

When to plant vegetables in Rhinelander, WI (USDA hardiness zone 4b). Typical last spring frost around May 26, 2026 12 days year to year), first fall frost around Sep 23, 202613 days).

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

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

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Month by month in Rhinelander, WI

February

March

April

May

June

July

Understand your frost dates

Frost dates for ZIP 54501: NOAA 1991-2020 normals (USW00004803 RHINELANDER ONEIDA AP, WI US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.