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Planting calendar for ZIP 61272 (New Boston, IL)

When to plant vegetables in New Boston, IL (USDA hardiness zone 5b). Typical last spring frost around Apr 14, 2026 12 days year to year), first fall frost around Oct 24, 202610 days).

Playing it safe? Spring frost holds off until about Apr 29, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full New Boston, IL planting calendar for dates typical of the whole city.

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Month by month in New Boston, IL

January

February

March

April

May

August

Understand your frost dates

Frost dates for ZIP 61272: NOAA 1991-2020 normals (USC00116080 NEW BOSTON DAM 17, IL US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.