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Decorah, IA planting calendar

When to plant vegetables in Decorah, IA (USDA hardiness zone 5a). Typical last spring frost around May 3, 2026 11 days year to year), first fall frost around Oct 7, 202610 days).

Playing it safe? Spring frost holds off until about May 17, 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:

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Still time to plant

As of today, these crops can still reach harvest before Decorah, IA’s first frost (~Oct 7, 2026) — fastest first.

Month by month in Decorah, IA

January

February

March

April

May

July

August

Understand your frost dates

More Iowa planting calendars

ZIP codes in Decorah

52101

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