Del Rio, TX 78843 Frost Dates
When can you plant in Del Rio, TX?
The last spring frost here typically falls around 02/16, about 172 days from today. The first fall frost typically arrives around 12/03, about 293 frost-free days later.
Zone 9a (20 to 25°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 Del Rio, not a forecast for this year.
What to do before the first frost
About 14 weeks of growing season left in Del Rio before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 02/16 isn't a guarantee
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 4,271 of 40,283 ZIP codes in this dataset. Within TX, it ranks 525 of 2,558.
Learn more
local microclimates covers what one yard in Del Rio can differ from the 78843 normal. zone vs. frost date covers why Zone 9a and Del Rio's frost date answer different questions.