Schertz, TX 78154 Frost Dates
Frost dates for Schertz, TX, ZIP 78154
The last spring frost here typically falls around 02/21, about 177 days from today. The first fall frost typically arrives around 12/05, about 289 frost-free days later.
Schertz 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 Schertz 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.
Why 02/21 isn't a guarantee
02/21 is the middle of 30 years of NOAA records, not a promise. Plant by 01/10 and you're betting against frost in roughly 9 years out of 10. 03/14 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Schertz compares
At roughly 289 frost-free days, Schertz places 4,538 of 40,283 ZIP codes in this dataset. Within TX, it ranks 668 of 2,558.
Learn more
local microclimates explains what one yard in Schertz can differ from the 78154 normal, and zone vs. frost date explains why Zone 9a and Schertz's frost date answer different questions.