Silsbee, TX 77612 Frost Dates
Frost dates for Silsbee, TX, ZIP 77612
The last spring frost here typically falls around 02/28, about 184 days from today. The first fall frost typically arrives around 11/23, about 273 frost-free days later.
The USDA Plant Hardiness Zone Map puts Silsbee in Zone 9a (20 to 25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 9a around Silsbee has about 12 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 02/28 isn't a guarantee
02/28 is the middle of 30 years of NOAA records, not a promise. Plant by 01/29 and you're betting against frost in roughly 9 years out of 10. 03/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Silsbee compares
Silsbee's growing season runs about 273 days, ranking 5,204 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 871 of 2,558.
Learn more
local microclimates explains what one yard in Silsbee can differ from the 77612 normal, and zone vs. frost date explains why Zone 9a and Silsbee's frost date answer different questions.