Kingsbury, TX 78638 Frost Dates
Frost dates for Kingsbury, TX, ZIP 78638
Typically, the last spring freeze lands around 03/01, roughly 185 days out. The first fall frost typically arrives around 11/26, about 273 frost-free days later.
The USDA Plant Hardiness Zone Map puts Kingsbury 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 Kingsbury 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.
The actual range around Kingsbury's last frost
03/01 is the middle of 30 years of NOAA records, not a promise. Plant by 02/03 and you're betting against frost in roughly 9 years out of 10. 03/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Kingsbury compares
Kingsbury's growing season runs about 273 days, ranking 5,224 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 885 of 2,558.
Learn more
zone vs. frost date explains why Zone 9a and Kingsbury's frost date answer different questions, and the frost range explains how to read the range around Kingsbury's dates instead of trusting one.