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Planting calendar for ZIP 98535 (Copalis Beach, WA)

When to plant vegetables in Copalis Beach, WA (USDA hardiness zone 9a). Typical last spring frost around Apr 26, 2026 18 days year to year), first fall frost around Oct 22, 202617 days).

Playing it safe? Spring frost holds off until about May 19, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

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

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Month by month in Copalis Beach, WA

January

February

March

April

May

June

August

Understand your frost dates

Frost dates for ZIP 98535: NOAA 1991-2020 normals (USC00453826 HUMPTULIPS SALMON HATCHERY, WA US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.