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Planting calendar for ZIP 60440 (Bolingbrook, IL)

When to plant vegetables in Bolingbrook, IL (USDA hardiness zone 6a). Typical last spring frost around Apr 20, 2026 11 days year to year), first fall frost around Oct 22, 202611 days).

Playing it safe? Spring frost holds off until about May 4, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Bolingbrook, IL

January

February

March

April

May

August

Understand your frost dates

Frost dates for ZIP 60440: NOAA 1991-2020 normals (USC00117457 ROMEOVILLE WFO, IL US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.