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Planting calendar for ZIP 62903 (Carbondale, IL)

When to plant vegetables in Carbondale, IL (USDA hardiness zone 7a). Typical last spring frost around Apr 9, 2026 13 days year to year), first fall frost around Oct 22, 20269 days).

Playing it safe? Spring frost holds off until about Apr 25, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Carbondale, IL

January

February

March

April

May

August

Understand your frost dates

Frost dates for ZIP 62903: NOAA 1991-2020 normals (USW00093810 CARBONDALE SOUTHERN IL AP, IL US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.