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Planting calendar for ZIP 06511 (New Haven, CT)

When to plant vegetables in New Haven, CT (USDA hardiness zone 7a). Typical last spring frost around Apr 17, 2026 11 days year to year), first fall frost around Oct 27, 202611 days).

Playing it safe? Spring frost holds off until about May 1, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full New Haven, CT planting calendar for dates typical of the whole city.

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Month by month in New Haven, CT

January

February

March

April

May

August

September

Understand your frost dates

Frost dates for ZIP 06511: NOAA 1991-2020 normals (USW00014758 NEW HAVEN TWEED AP, CT US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.