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Port Arthur, TX planting calendar

When to plant vegetables in Port Arthur, TX (USDA hardiness zone 9b). Typical last spring frost around Feb 14, 2026 (±21 days year to year), first fall frost around Dec 7, 2026 (±21 days).

Playing it safe? Spring frost holds off until about Mar 12, 2026 in roughly 9 years out of 10 — a good target for tender crops like tomatoes and peppers.

These dates are typical for the whole city. Enter your ZIP for frost dates from the station nearest you:

Still time to plant

As of today, these crops can still reach harvest before Port Arthur, TX’s first frost (~Dec 7, 2026) — fastest first.

Month by month in Port Arthur, TX

January

February

March

September

November

December

Understand your frost dates

More Texas planting calendars

ZIP codes in Port Arthur

77640, 77642

Where these dates come from

Frost dates for Port Arthur, TXare NOAA 1991–2020 climate normals from a station representative of the area, which covers 2 ZIP codes. Individual ZIP codes within it can run earlier or later.

Your exact dates depend on your address and microclimate. Schedules are guidance, not guarantees.