South Houston, TX 77075 Frost Dates
Frost dates for South Houston, TX, ZIP 77075
Typically, the last spring freeze lands around 01/30, roughly 155 days out. The first fall frost typically arrives around 12/28, about 330 frost-free days later.
The USDA Plant Hardiness Zone Map puts South Houston in Zone 9b (25 to 30°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 9b around South Houston has about 17 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 South Houston's last frost
01/30 is the middle of 30 years of NOAA records, not a promise. Plant by 03/01 and you're betting against frost in roughly 9 years out of 10. 12/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How South Houston compares
About 330 days separate South Houston's last and first frost, putting it 3,017 of 40,283 ZIP codes nationally. Within TX, it ranks 156 of 2,558.
Learn more
the frost range explains how to read the range around South Houston's dates instead of trusting one, and local microclimates explains what one yard in South Houston can differ from the 77075 normal.