San Leanna, TX 78748 Frost Dates
Frost dates for San Leanna, TX, ZIP 78748
The last spring frost here typically falls around 03/12, about 196 days from today. The first fall frost typically arrives around 11/16, about 252 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 San Leanna, not a forecast for this year.
What to do before the first frost
Zone 9a around San Leanna has about 11 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 San Leanna's last frost
03/12 is the middle of 30 years of NOAA records, not a promise. Plant by 02/20 and you're betting against frost in roughly 9 years out of 10. 04/02 is the safer bet, historically only a 1-in-10 chance of frost that late.
How San Leanna compares
San Leanna's growing season runs about 252 days, ranking 7,252 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 1,575 of 2,558.
Learn more
zone vs. frost date explains why Zone 9a and San Leanna's frost date answer different questions, and the frost range explains how to read the range around San Leanna's dates instead of trusting one.