Edinburg, TX 78599 Frost Dates
Frost dates for Edinburg, TX, ZIP 78599
The last spring frost here typically falls around 01/08, about 133 days from today. The first fall frost typically arrives around 01/02, about 365 frost-free days later.
Edinburg sits in USDA Zone 10a (30 to 35°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 10a around Edinburg has about 18 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 01/08 isn't a guarantee
01/08 is the middle of 30 years of NOAA records, not a promise. Plant by 02/21 and you're betting against frost in roughly 9 years out of 10. 12/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Edinburg compares
About 365 days separate Edinburg's last and first frost, putting it 480 of 40,283 ZIP codes nationally. Within TX, it ranks 16 of 2,558.
Learn more
zone vs. frost date explains why Zone 10a and Edinburg's frost date answer different questions, and the frost range explains how to read the range around Edinburg's dates instead of trusting one.