South Houston, TX 77089 Frost Dates
South Houston, TX: when does the frost end?
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.
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
With roughly 17 weeks until South Houston's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
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
About 330 days separate South Houston's last and first frost, putting it 3,019 of 40,283 ZIP codes nationally. Within TX, it ranks 158 of 2,558.
Learn more
Before leaning on 77089's figures: local microclimates explains what one yard in South Houston can differ from the 77089 normal, while zone vs. frost date explains why Zone 9b and South Houston's frost date answer different questions.