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Planting calendar for ZIP 83811 (Clark Fork, ID)

When to plant vegetables in Clark Fork, ID (USDA hardiness zone 6b). Typical last spring frost around May 9, 2026 12 days year to year), first fall frost around Oct 8, 202612 days).

Playing it safe? Spring frost holds off until about May 24, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Clark Fork, ID planting calendar for dates typical of the whole city.

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Month by month in Clark Fork, ID

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March

April

May

June

July

August

Understand your frost dates

Frost dates for ZIP 83811: NOAA 1991-2020 normals (USC00101363 CABINET GORGE, ID US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.