Shiner, TX 77984 Frost Dates
Frost dates for Shiner, TX, ZIP 77984
Typically, the last spring freeze lands around 03/02, roughly 186 days out. The first fall frost typically arrives around 11/30, about 276 frost-free days later.
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 Shiner, not a forecast for this year.
What to do before the first frost
Zone 9a around Shiner has about 13 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.
Why 03/02 isn't a guarantee
03/02 is the middle of 30 years of NOAA records, not a promise. Plant by 01/31 and you're betting against frost in roughly 9 years out of 10. 03/23 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Shiner compares
At roughly 276 frost-free days, Shiner places 5,107 of 40,283 ZIP codes in this dataset. Within TX, it ranks 836 of 2,558.
Learn more
the frost range explains how to read the range around Shiner's dates instead of trusting one, and local microclimates explains what one yard in Shiner can differ from the 77984 normal.