Austin, TX 78759 Frost Dates
Frost dates for Austin, TX, ZIP 78759
The last spring frost here typically falls around 03/11, about 195 days from today. The first fall frost typically arrives around 11/20, about 254 frost-free days later.
Austin 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 Austin 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 Austin's last frost
03/11 is the middle of 30 years of NOAA records, not a promise. Plant by 02/22 and you're betting against frost in roughly 9 years out of 10. 03/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Austin compares
Austin's growing season runs about 254 days, ranking 6,982 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 1,511 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.