Houston, TX 77287 Frost Dates
Houston, TX: when does the frost end?
The last spring frost here typically falls around 02/13, about 169 days from today. Fall's first freeze usually shows up around 12/09, roughly 300 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
With roughly 15 weeks until Houston's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 02/13 isn't a guarantee
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 4,062 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 394 of 2,558.
Learn more
Before leaning on 77287's figures: local microclimates explains what one yard in Houston can differ from the 77287 normal, while zone vs. frost date explains why Zone 9b and Houston's frost date answer different questions.