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Planting calendar for ZIP 82715 (Four Corners, WY)

When to plant vegetables in Four Corners, WY (USDA hardiness zone 4b). Typical last spring frost around May 20, 2026 11 days year to year), first fall frost around Sep 23, 202611 days).

Playing it safe? Spring frost holds off until about Jun 3, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Four Corners, WY planting calendar for dates typical of the whole city.

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Month by month in Four Corners, WY

February

March

April

May

June

July

Understand your frost dates

Frost dates for ZIP 82715: NOAA 1991-2020 normals (USC00489205 UPTON, WY US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.