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Planting calendar for ZIP 97450 (Langlois, OR)

When to plant vegetables in Langlois, OR (USDA hardiness zone 9a). Typical last spring frost around Mar 16, 2026 27 days year to year), first fall frost around Nov 29, 202625 days).

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

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

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Month by month in Langlois, OR

January

February

March

April

May

August

September

December

Understand your frost dates

Frost dates for ZIP 97450: NOAA 1991-2020 normals (USC00354721 LANGLOIS #2, OR US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.