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Planting calendar for ZIP 03470 (Winchester, NH)

When to plant vegetables in Winchester, NH (USDA hardiness zone 6a). Typical last spring frost around Apr 25, 2026 10 days year to year), first fall frost around Oct 17, 202612 days).

Playing it safe? Spring frost holds off until about May 7, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Winchester, NH planting calendar for dates typical of the whole city.

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Month by month in Winchester, NH

January

February

March

April

May

August

Understand your frost dates

Frost dates for ZIP 03470: NOAA 1991-2020 normals (USC00198573 TULLY LAKE, MA US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.