Houston, TX 77245 Frost Dates
77245, near Houston, TX: the frost window
Around 02/13 is the usual last spring frost, about 169 days away. Fall's first freeze usually shows up around 12/09, roughly 300 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 15 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
02/13 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/12 and only about 1 year in 10 sees frost after that.
Houston against the rest of the dataset
Houston's growing season runs about 300 days, ranking 4,031 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 363 of 2,558.
Learn more
Two guides worth reading on 77245: 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 77245 normal.