Kirbyville, TX 75956 Frost Dates
75956, near Kirbyville, TX: the frost window
Around 03/09 is the usual last spring frost, about 193 days away. Fall's first freeze usually shows up around 11/22, roughly 258 days after the last spring frost.
Zone 9a (20 to 25°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 Kirbyville, not a forecast for this year.
Stretching the season past the first frost
Kirbyville's growing season runs out in roughly 12 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/09 isn't a guarantee
03/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/02 and only about 1 year in 10 sees frost after that.
Kirbyville against the rest of the dataset
At roughly 258 frost-free days, Kirbyville places 6,647 of 40,283 ZIP codes in this dataset. Within TX, it ranks 1,414 of 2,558.
Learn more
Two guides worth reading on 75956: local microclimates, on what one yard in Kirbyville can differ from the 75956 normal, and zone vs. frost date, on why Zone 9a and Kirbyville's frost date answer different questions.