South Houston, TX 77087 Frost Dates
77087, near South Houston, TX: the frost window
Around 01/30 is the usual last spring frost, about 155 days away. Fall's first freeze usually shows up around 12/28, roughly 330 days after the last spring frost.
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.
Stretching the season past the first frost
South Houston's growing season runs out in roughly 17 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around South Houston's last frost
01/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/29 and only about 1 year in 10 sees frost after that.
South Houston against the rest of the dataset
South Houston's growing season runs about 330 days, ranking 3,018 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 157 of 2,558.
Learn more
Two guides worth reading on 77087: the frost range, on how to read the range around South Houston's dates instead of trusting one, and local microclimates, on what one yard in South Houston can differ from the 77087 normal.