Houston, TX 77252 Frost Dates
77252, near Houston, TX: the frost window
Around 02/13 is the usual last spring frost, about 169 days away. Fall's first freeze usually shows up around 12/09, roughly 300 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts 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.
Stretching the season past the first frost
Houston's growing season runs out in roughly 15 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 02/13 isn't a guarantee
02/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/12 and only about 1 year in 10 sees frost after that.
Houston against the rest of the dataset
About 300 days separate Houston's last and first frost, putting it 4,035 of 40,283 ZIP codes nationally. Within TX, it ranks 367 of 2,558.
Learn more
Two guides worth reading on 77252: the frost range, on how to read the range around Houston's dates instead of trusting one, and local microclimates, on what one yard in Houston can differ from the 77252 normal.