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Coulee Dam, WA planting calendar

When to plant vegetables in Coulee Dam, WA (USDA hardiness zone 7a). Typical last spring frost around Apr 22, 2026 13 days year to year), first fall frost around Oct 21, 202612 days).

Playing it safe? Spring frost holds off until about May 8, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

Want exact dates for your address, a drag-and-drop bed layout, and reminders when it’s time to sow? Enter your ZIP:

Or get a printable Coulee Dam calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Coulee Dam, WA’s first frost (~Oct 21, 2026) — fastest first.

Month by month in Coulee Dam, WA

January

February

March

April

May

August

Understand your frost dates

More Washington planting calendars

ZIP codes in Coulee Dam

99116

Frost dates are NOAA 1991–2020 climate normals for a representative location in Coulee Dam, WA (covering 1 ZIP); your exact dates depend on your address. Schedules are guidance, not guarantees.