Austin, TX 78711 Frost Dates
Frost dates for Austin, TX, ZIP 78711
The last spring frost here typically falls around 02/20, about 176 days from today. The first fall frost typically arrives around 12/03, about 291 frost-free days later.
The USDA Plant Hardiness Zone Map puts Austin 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 Austin 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 02/20 isn't a guarantee
02/20 is the middle of 30 years of NOAA records, not a promise. Plant by 01/23 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 Austin compares
At roughly 291 frost-free days, Austin places 4,401 of 40,283 ZIP codes in this dataset. Within TX, it ranks 563 of 2,558.
Learn more
zone vs. frost date explains why Zone 9a and Austin's frost date answer different questions, and the frost range explains how to read the range around Austin's dates instead of trusting one.