San Angelo, TX 76906 Frost Dates
76906, near San Angelo, TX: the frost window
Typically, the last spring freeze lands around 03/22, roughly 206 days out. Fall's first freeze usually shows up around 11/10, roughly 233 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts San Angelo in Zone 8a (10 to 15°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
San Angelo'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.
How much risk comes with planting early here
03/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/10 and only about 1 year in 10 sees frost after that.
San Angelo against the rest of the dataset
About 233 days separate San Angelo's last and first frost, putting it 9,850 of 40,283 ZIP codes nationally. Within TX, it ranks 2,092 of 2,558.
Learn more
Two guides worth reading on 76906: local microclimates, on what one yard in San Angelo can differ from the 76906 normal, and zone vs. frost date, on why Zone 8a and San Angelo's frost date answer different questions.