Rio Bravo, TX 78044 Frost Dates
When can you plant in Rio Bravo, TX?
Around 01/20 is the usual last spring frost, about 145 days away. The first fall frost typically arrives around 12/25, about 344 frost-free days later.
Rio Bravo 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 Rio Bravo before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Rio Bravo's last frost
01/20 is the middle of 30 years of NOAA records, not a promise. Plant by 02/26 and you're betting against frost in roughly 9 years out of 10. 12/16 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Rio Bravo compares
Rio Bravo's growing season runs about 344 days, ranking 2,458 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 92 of 2,558.
Learn more
the frost range covers how to read the range around Rio Bravo's dates instead of trusting one. local microclimates covers what one yard in Rio Bravo can differ from the 78044 normal.