Olmos Park, TX 78215 Frost Dates
Frost dates for Olmos Park, TX, ZIP 78215
Typically, the last spring freeze lands around 02/25, roughly 181 days out. The first fall frost typically arrives around 11/28, about 277 frost-free days later.
The USDA Plant Hardiness Zone Map puts Olmos Park in Zone 9a (20 to 25°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 9a around Olmos Park 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.
Why 02/25 isn't a guarantee
02/25 is the middle of 30 years of NOAA records, not a promise. Plant by 01/28 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 Olmos Park compares
At roughly 277 frost-free days, Olmos Park places 5,024 of 40,283 ZIP codes in this dataset. Within TX, it ranks 822 of 2,558.
Learn more
zone vs. frost date explains why Zone 9a and Olmos Park's frost date answer different questions, and the frost range explains how to read the range around Olmos Park's dates instead of trusting one.