Del Rio, TX 78841 Frost Dates
Frost dates for Del Rio, TX, ZIP 78841
Around 02/16 is the usual last spring frost, about 172 days away. The first fall frost typically arrives around 12/03, about 293 frost-free days later.
The USDA Plant Hardiness Zone Map puts Del Rio in Zone 8b (15 to 20°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 8b around Del Rio 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.
The actual range around Del Rio's last frost
02/16 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. 03/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Del Rio compares
At roughly 293 frost-free days, Del Rio places 4,269 of 40,283 ZIP codes in this dataset. Within TX, it ranks 523 of 2,558.
Learn more
the frost range explains how to read the range around Del Rio's dates instead of trusting one, and local microclimates explains what one yard in Del Rio can differ from the 78841 normal.