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Planting calendar for ZIP 59313 (Baker, MT)

When to plant vegetables in Baker, MT (USDA hardiness zone 4b). Typical last spring frost around May 16, 2026 10 days year to year), first fall frost around Sep 26, 202610 days).

Playing it safe? Spring frost holds off until about May 28, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Baker, MT planting calendar for dates typical of the whole city.

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Month by month in Baker, MT

February

March

April

May

June

July

August

Understand your frost dates

Frost dates for ZIP 59313: NOAA 1991-2020 normals (USW00094055 BAKER MUNI AP, MT US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.