Post, TX 79356 Frost Dates
Frost dates for Post, TX, ZIP 79356
Typically, the last spring freeze lands around 04/01, roughly 216 days out. The first fall frost typically arrives around 11/09, about 223 frost-free days later.
Zone 8a (10 to 15°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 Post, not a forecast for this year.
What to do before the first frost
Zone 8a around Post has about 10 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.
How much risk comes with planting early here
04/01 is the middle of 30 years of NOAA records, not a promise. Plant by 03/10 and you're betting against frost in roughly 9 years out of 10. 04/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Post compares
About 223 days separate Post's last and first frost, putting it 12,065 of 40,283 ZIP codes nationally. Within TX, it ranks 2,267 of 2,558.
Learn more
local microclimates explains what one yard in Post can differ from the 79356 normal, and zone vs. frost date explains why Zone 8a and Post's frost date answer different questions.