Humble, TX 77339 Frost Dates
When can you plant in Humble, TX?
Typically, the last spring freeze lands around 02/13, roughly 169 days out. The first fall frost typically arrives around 12/09, about 300 frost-free days later.
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 Humble, not a forecast for this year.
What to do before the first frost
About 15 weeks of growing season left in Humble 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 Humble compares
At roughly 300 frost-free days, Humble places 4,097 of 40,283 ZIP codes in this dataset. Within TX, it ranks 427 of 2,558.
Learn more
zone vs. frost date covers why Zone 9b and Humble's frost date answer different questions. the frost range covers how to read the range around Humble's dates instead of trusting one.