Silsbee, TX 77656 Frost Dates
Frost dates for Silsbee, TX, ZIP 77656
Typically, the last spring freeze lands around 03/06, roughly 190 days out. The first fall frost typically arrives around 11/21, about 261 frost-free days later.
Silsbee sits in USDA Zone 9a (20 to 25°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a 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.
The actual range around Silsbee's last frost
03/06 is the middle of 30 years of NOAA records, not a promise. Plant by 02/09 and you're betting against frost in roughly 9 years out of 10. 03/31 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Silsbee compares
About 261 days separate Silsbee's last and first frost, putting it 6,400 of 40,283 ZIP codes nationally. Within TX, it ranks 1,288 of 2,558.
Learn more
local microclimates explains what one yard in Silsbee can differ from the 77656 normal, and zone vs. frost date explains why Zone 9a and Silsbee's frost date answer different questions.