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Planting calendar for ZIP 59867 (Saltese, MT)

When to plant vegetables in Saltese, MT (USDA hardiness zone 6a). Typical last spring frost around Jun 10, 2026 14 days year to year), first fall frost around Sep 23, 202613 days).

Playing it safe? Spring frost holds off until about Jun 27, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Saltese, MT

March

April

May

June

July

Understand your frost dates

Frost dates for ZIP 59867: NOAA 1991-2020 normals (USW00024154 MULLAN PASS VOR/DME, ID US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.