Universal City, TX 78148 Frost Dates
78148, near Universal City, TX: the frost window
Around 02/21 is the usual last spring frost, about 177 days away. Fall's first freeze usually shows up around 12/05, roughly 289 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Universal City in Zone 9a (20 to 25°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
Universal City's growing season runs out in roughly 14 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Universal City's last frost
02/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/14 and only about 1 year in 10 sees frost after that.
Universal City against the rest of the dataset
At roughly 289 frost-free days, Universal City places 4,542 of 40,283 ZIP codes in this dataset. Within TX, it ranks 671 of 2,558.
Learn more
Two guides worth reading on 78148: local microclimates, on what one yard in Universal City can differ from the 78148 normal, and zone vs. frost date, on why Zone 9a and Universal City's frost date answer different questions.