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Planting calendar for ZIP 98814 (Carlton, WA)

When to plant vegetables in Carlton, WA (USDA hardiness zone 6b). Typical last spring frost around Apr 21, 2026 15 days year to year), first fall frost around Oct 15, 202610 days).

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

See the full Carlton, WA planting calendar for dates typical of the whole city.

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Month by month in Carlton, WA

January

February

March

April

May

August

Understand your frost dates

Frost dates for ZIP 98814: NOAA 1991-2020 normals (USC00455326 METHOW 2 S, WA US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.