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Planting calendar for ZIP 82935 (Green River, WY)

When to plant vegetables in Green River, WY (USDA hardiness zone 5a). Typical last spring frost around May 24, 2026 13 days year to year), first fall frost around Sep 22, 202611 days).

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

See the full Green River, WY planting calendar for dates typical of the whole city.

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Month by month in Green River, WY

February

March

April

May

June

July

Understand your frost dates

Frost dates for ZIP 82935: NOAA 1991-2020 normals (USC00484065 GREEN RVR, WY US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.