San Perlita, TX 78590 Frost Dates
San Perlita, TX: when does the frost end?
Around 01/12 is the usual last spring frost, about 137 days away. Fall's first freeze usually shows up around 01/01, roughly 362 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts San Perlita in Zone 10a (30 to 35°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 18 weeks until San Perlita's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 01/12 isn't a guarantee
01/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/15 and only about 1 year in 10 sees frost after that.
San Perlita against the rest of the dataset
San Perlita's growing season runs about 362 days, ranking 2,080 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 51 of 2,558.
Learn more
Before leaning on 78590's figures: the frost range explains how to read the range around San Perlita's dates instead of trusting one, while local microclimates explains what one yard in San Perlita can differ from the 78590 normal.