Dallas, TX 75339 Frost Dates
Frost dates for Dallas, TX, ZIP 75339
Typically, the last spring freeze lands around 03/02, roughly 186 days out. The first fall frost typically arrives around 11/29, about 272 frost-free days later.
Zone 8b (15 to 20°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 Dallas, not a forecast for this year.
What to do before the first frost
Zone 8b around Dallas has about 13 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
03/02 is the middle of 30 years of NOAA records, not a promise. Plant by 02/10 and you're betting against frost in roughly 9 years out of 10. 03/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dallas compares
At roughly 272 frost-free days, Dallas places 5,278 of 40,283 ZIP codes in this dataset. Within TX, it ranks 939 of 2,558.
Learn more
the frost range explains how to read the range around Dallas's dates instead of trusting one, and local microclimates explains what one yard in Dallas can differ from the 75339 normal.