Brownsville, TX 78523 Frost Dates
When can you plant in Brownsville, TX?
The last spring frost here typically falls around 01/06, about 131 days from today. The first fall frost typically arrives around 01/02, about 365 frost-free days later.
Zone 10a (30 to 35°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 Brownsville, not a forecast for this year.
What to do before the first frost
About 18 weeks of growing season left in Brownsville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Brownsville's last frost
01/06 is the middle of 30 years of NOAA records, not a promise. Plant by 02/01 and you're betting against frost in roughly 9 years out of 10. 12/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Brownsville compares
At roughly 365 frost-free days, Brownsville places 360 of 40,283 ZIP codes in this dataset. Within TX, it ranks 5 of 2,558.
Learn more
local microclimates covers what one yard in Brownsville can differ from the 78523 normal. zone vs. frost date covers why Zone 10a and Brownsville's frost date answer different questions.