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Planting calendar for ZIP 84302 (Brigham City, UT)

When to plant vegetables in Brigham City, UT (USDA hardiness zone 6b). Typical last spring frost around May 5, 2026 15 days year to year), first fall frost around Oct 5, 202611 days).

Playing it safe? Spring frost holds off until about May 24, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

See the full Brigham City, UT planting calendar for dates typical of the whole city.

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Month by month in Brigham City, UT

February

March

April

May

June

July

August

Understand your frost dates

Frost dates for ZIP 84302: NOAA 1991-2020 normals (USC00420928 BRIGHAM CITY WASTE PLT, UT US). Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.