New Boston, TX 75570 Frost Dates
Frost dates for New Boston, TX, ZIP 75570
Typically, the last spring freeze lands around 03/04, roughly 188 days out. The first fall frost typically arrives around 11/21, about 261 frost-free days later.
The USDA Plant Hardiness Zone Map puts New Boston in Zone 8b (15 to 20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
Zone 8b around New Boston has about 12 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
03/04 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. 03/24 is the safer bet, historically only a 1-in-10 chance of frost that late.
How New Boston compares
About 261 days separate New Boston's last and first frost, putting it 6,406 of 40,283 ZIP codes nationally. Within TX, it ranks 1,291 of 2,558.
Learn more
zone vs. frost date explains why Zone 8b and New Boston's frost date answer different questions, and the frost range explains how to read the range around New Boston's dates instead of trusting one.