San Angelo, TX 76903 Frost Dates
Frost dates for San Angelo, TX, ZIP 76903
Typically, the last spring freeze lands around 03/20, roughly 204 days out. The first fall frost typically arrives around 11/10, about 232 frost-free days later.
San Angelo sits in USDA Zone 8a (10 to 15°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 8a around San Angelo has about 11 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
03/20 is the middle of 30 years of NOAA records, not a promise. Plant by 03/01 and you're betting against frost in roughly 9 years out of 10. 04/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How San Angelo compares
San Angelo's growing season runs about 232 days, ranking 10,025 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 2,115 of 2,558.
Learn more
zone vs. frost date explains why Zone 8a and San Angelo's frost date answer different questions, and the frost range explains how to read the range around San Angelo's dates instead of trusting one.