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Charlestown, NH planting calendar

When to plant vegetables in Charlestown, NH (USDA hardiness zone 5b). Typical last spring frost around May 9, 2026 10 days year to year), first fall frost around Oct 2, 202610 days).

Playing it safe? Spring frost holds off until about May 21, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

Want exact dates for your address, a drag-and-drop bed layout, and reminders when it’s time to sow? Enter your ZIP:

Or get a printable Charlestown calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Charlestown, NH’s first frost (~Oct 2, 2026) — fastest first.

Month by month in Charlestown, NH

January

February

March

April

May

June

July

August

Understand your frost dates

More New Hampshire planting calendars

ZIP codes in Charlestown

03603

Frost dates are NOAA 1991–2020 climate normals for a representative location in Charlestown, NH (covering 1 ZIP); your exact dates depend on your address. Schedules are guidance, not guarantees.