Weir, TX 78673 Frost Dates
Frost dates for Weir, TX, ZIP 78673
Typically, the last spring freeze lands around 03/06, roughly 190 days out. The first fall frost typically arrives around 11/24, about 259 frost-free days later.
Weir sits in USDA Zone 8b (15 to 20°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 8b around Weir 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.
The actual range around Weir's last frost
03/06 is the middle of 30 years of NOAA records, not a promise. Plant by 02/13 and you're betting against frost in roughly 9 years out of 10. 03/30 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Weir compares
About 259 days separate Weir's last and first frost, putting it 6,600 of 40,283 ZIP codes nationally. Within TX, it ranks 1,395 of 2,558.
Learn more
the frost range explains how to read the range around Weir's dates instead of trusting one, and local microclimates explains what one yard in Weir can differ from the 78673 normal.