Houston, TX 77007 Frost Dates
77007, 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.
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
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.
Houston against the rest of the dataset
Houston's growing season runs about 330 days, ranking 2,962 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 137 of 2,558.
Learn more
Two guides worth reading on 77007: local microclimates, on what one yard in Houston can differ from the 77007 normal, and zone vs. frost date, on why Zone 9b and Houston's frost date answer different questions.