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Planting calendar for ZIP 87544 (Los Alamos, NM)

When to plant vegetables in Los Alamos, NM (USDA hardiness zone 7a). Typical last spring frost around May 2, 2026 11 days year to year), first fall frost around Oct 12, 20269 days).

Playing it safe? Spring frost holds off until about May 16, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Los Alamos, NM planting calendar for dates typical of the whole city.

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Month by month in Los Alamos, NM

January

February

March

April

May

August

Understand your frost dates

Frost dates for ZIP 87544: NOAA 1991-2020 normals (USC00295084 LOS ALAMOS, NM US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.