La Grulla, TX 78547 Frost Dates
When can you plant in La Grulla, TX?
The last spring frost here typically falls around 01/31, about 156 days from today. The first fall frost typically arrives around 12/17, about 321 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 La Grulla, not a forecast for this year.
What to do before the first frost
About 16 weeks of growing season left in La Grulla 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
01/31 is the middle of 30 years of NOAA records, not a promise. Plant by 03/04 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 La Grulla compares
La Grulla's growing season runs about 321 days, ranking 3,307 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 214 of 2,558.
Learn more
zone vs. frost date covers why Zone 9b and La Grulla's frost date answer different questions. the frost range covers how to read the range around La Grulla's dates instead of trusting one.