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Planting calendar for ZIP 59424 (Coffee Creek, MT)

When to plant vegetables in Coffee Creek, MT (USDA hardiness zone 4b). Typical last spring frost around Jun 1, 2026 16 days year to year), first fall frost around Sep 11, 202611 days).

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

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

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Month by month in Coffee Creek, MT

March

April

May

June

July

Understand your frost dates

Frost dates for ZIP 59424: NOAA 1991-2020 normals (USC00242347 DENTON, MT US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.