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River Falls, WI planting calendar

When to plant vegetables in River Falls, WI (USDA hardiness zone 4b). Typical last spring frost around May 11, 2026 12 days year to year), first fall frost around Oct 1, 202610 days).

Playing it safe? Spring frost holds off until about May 26, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

Want exact dates for your address, a drag-and-drop bed layout, and reminders when it’s time to sow? Enter your ZIP:

Or get a printable River Falls calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before River Falls, WI’s first frost (~Oct 1, 2026) — fastest first.

Month by month in River Falls, WI

February

March

April

May

June

July

August

Understand your frost dates

More Wisconsin planting calendars

ZIP codes in River Falls

54022

Frost dates are NOAA 1991–2020 climate normals for a representative location in River Falls, WI (covering 1 ZIP); your exact dates depend on your address. Schedules are guidance, not guarantees.