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Planting calendar for ZIP 97086 (Happy Valley, OR)

When to plant vegetables in Happy Valley, OR (USDA hardiness zone 8b). Typical last spring frost around Mar 18, 2026 20 days year to year), first fall frost around Nov 18, 202617 days).

Playing it safe? Spring frost holds off until about Apr 12, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Happy Valley, OR planting calendar for dates typical of the whole city.

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Month by month in Happy Valley, OR

January

February

March

April

August

September

December

Understand your frost dates

Frost dates for ZIP 97086: NOAA 1991-2020 normals (USC00356334 OREGON CITY, OR US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.