Leon Valley, TX 78250 Frost Dates
Frost dates for Leon Valley, TX, ZIP 78250
Around 02/18 is the usual last spring frost, about 174 days away. The first fall frost typically arrives around 12/09, about 296 frost-free days later.
Leon Valley sits in USDA Zone 9a (20 to 25°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 9a around Leon Valley has about 15 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 Leon Valley's last frost
02/18 is the middle of 30 years of NOAA records, not a promise. Plant by 01/18 and you're betting against frost in roughly 9 years out of 10. 03/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Leon Valley compares
Leon Valley's growing season runs about 296 days, ranking 4,237 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 506 of 2,558.
Learn more
local microclimates explains what one yard in Leon Valley can differ from the 78250 normal, and zone vs. frost date explains why Zone 9a and Leon Valley's frost date answer different questions.