FrostDateCheck

Port Neches, TX 77651 Frost Dates

When can you plant in Port Neches, TX?

Zone 9b

Around 02/14 is the usual last spring frost, about 170 days away. The first fall frost typically arrives around 12/07, about 301 frost-free days later.

Zone 9b (25 to 30°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Port Neches, not a forecast for this year.

What to do before the first frost

About 14 weeks of growing season left in Port Neches before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

How much risk comes with planting early here

02/14 is the middle of 30 years of NOAA records, not a promise. Plant by 01/17 and you're betting against frost in roughly 9 years out of 10. 03/13 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Port Neches compares

At roughly 301 frost-free days, Port Neches places 3,960 of 40,283 ZIP codes in this dataset. Within TX, it ranks 303 of 2,558.

Learn more

local microclimates covers what one yard in Port Neches can differ from the 77651 normal. zone vs. frost date covers why Zone 9b and Port Neches's frost date answer different questions.