Westover Hills, TX 76109 Frost Dates
76109, near Westover Hills, TX: the frost window
Around 03/14 is the usual last spring frost, about 198 days away. Fall's first freeze usually shows up around 11/16, roughly 245 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Westover Hills in Zone 8b (15 to 20°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
Westover Hills's growing season runs out in roughly 11 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/14 isn't a guarantee
03/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/03 and only about 1 year in 10 sees frost after that.
Westover Hills against the rest of the dataset
About 245 days separate Westover Hills's last and first frost, putting it 8,059 of 40,283 ZIP codes nationally. Within TX, it ranks 1,825 of 2,558.
Learn more
Two guides worth reading on 76109: the frost range, on how to read the range around Westover Hills's dates instead of trusting one, and local microclimates, on what one yard in Westover Hills can differ from the 76109 normal.