South Houston, TX 77587 Frost Dates
When can you plant in South Houston, TX?
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.
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.
What to do before the first frost
About 17 weeks of growing season left in South Houston before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
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 3,021 of 40,283 ZIP codes nationally. Within TX, it ranks 160 of 2,558.
Learn more
local microclimates covers what one yard in South Houston can differ from the 77587 normal. zone vs. frost date covers why Zone 9b and South Houston's frost date answer different questions.