FrostDateCheck

Houston, TX 77275 Frost Dates

When can you plant in Houston, TX?

Zone 9b

The last spring frost here typically falls around 02/13, about 169 days from today. The first fall frost typically arrives around 12/09, about 300 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 15 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

02/13 is the middle of 30 years of NOAA records, not a promise. Plant by 01/12 and you're betting against frost in roughly 9 years out of 10. 03/12 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Houston compares

At roughly 300 frost-free days, Houston places 4,056 of 40,283 ZIP codes in this dataset. Within TX, it ranks 388 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 77275 normal.