Houston, TX 77292 Frost Dates
77292, near 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.
Zone 9b (25 to 30°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Houston, not a forecast for this year.
Stretching the season past the first frost
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.
How much risk comes with planting early here
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.
Houston against the rest of the dataset
About 330 days separate Houston's last and first frost, putting it 2,968 of 40,283 ZIP codes nationally. Within TX, it ranks 143 of 2,558.
Learn more
Two guides worth reading on 77292: 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 77292 normal.