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Green River, WY planting calendar

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.

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 Green River calendar and sowing reminders by email:

Still time to plant

As of today, these crops can still reach harvest before Green River, WY’s first frost (~Sep 22, 2026) — fastest first.

Month by month in Green River, WY

February

March

April

May

June

July

Understand your frost dates

More Wyoming planting calendars

ZIP codes in Green River

82935

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