Houston, TX 77019 Frost Dates
When can you plant in Houston, TX?
The last spring frost here typically falls around 01/30, about 155 days from today. The first fall frost typically arrives around 12/28, about 330 frost-free days later.
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 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 Houston compares
Houston's growing season runs about 330 days, ranking 2,965 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 140 of 2,558.
Learn more
the frost range covers how to read the range around Houston's dates instead of trusting one. local microclimates covers what one yard in Houston can differ from the 77019 normal.