South Houston, TX 77061 Frost Dates
77061, near South Houston, TX: the frost window
Typically, the last spring freeze lands around 01/30, roughly 155 days out. Fall's first freeze usually shows up around 12/28, roughly 330 days after the last spring frost.
South Houston sits in USDA Zone 9b (25 to 30°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.
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.
Why 01/30 isn't a guarantee
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
At roughly 330 frost-free days, South Houston places 3,016 of 40,283 ZIP codes in this dataset. Within TX, it ranks 155 of 2,558.
Learn more
Two guides worth reading on 77061: 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 77061 normal.