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Oldham, SD planting calendar

When to plant vegetables in Oldham, SD (USDA hardiness zone 4b). Typical last spring frost around May 3, 2026 9 days year to year), first fall frost around Oct 2, 202611 days).

Playing it safe? Spring frost holds off until about May 14, 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:

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Still time to plant

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

Month by month in Oldham, SD

January

February

March

April

May

July

August

Understand your frost dates

More South Dakota planting calendars

ZIP codes in Oldham

57051

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