Premont, TX 78349 Frost Dates
Frost dates for Premont, TX, ZIP 78349
The last spring frost here typically falls around 02/25, about 181 days from today. The first fall frost typically arrives around 12/01, about 285 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 Premont, not a forecast for this year.
What to do before the first frost
Zone 9b around Premont has about 14 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
02/25 is the middle of 30 years of NOAA records, not a promise. Plant by 01/19 and you're betting against frost in roughly 9 years out of 10. 03/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Premont compares
At roughly 285 frost-free days, Premont places 4,648 of 40,283 ZIP codes in this dataset. Within TX, it ranks 711 of 2,558.
Learn more
local microclimates explains what one yard in Premont can differ from the 78349 normal, and zone vs. frost date explains why Zone 9b and Premont's frost date answer different questions.