Terrell Hills, TX 78280 Frost Dates
Frost dates for Terrell Hills, TX, ZIP 78280
Around 02/25 is the usual last spring frost, about 181 days away. The first fall frost typically arrives around 11/28, about 277 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 Terrell Hills, not a forecast for this year.
What to do before the first frost
Zone 9a around Terrell Hills 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 02/25 isn't a guarantee
02/25 is the middle of 30 years of NOAA records, not a promise. Plant by 01/28 and you're betting against frost in roughly 9 years out of 10. 03/19 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Terrell Hills compares
About 277 days separate Terrell Hills's last and first frost, putting it 4,999 of 40,283 ZIP codes nationally. Within TX, it ranks 797 of 2,558.
Learn more
local microclimates explains what one yard in Terrell Hills can differ from the 78280 normal, and zone vs. frost date explains why Zone 9a and Terrell Hills's frost date answer different questions.