Lavon, TX 75121 Frost Dates
Frost dates for Lavon, TX, ZIP 75121
Typically, the last spring freeze lands around 03/18, roughly 202 days out. The first fall frost typically arrives around 11/11, about 239 frost-free days later.
Zone 8b (15 to 20°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 Lavon, not a forecast for this year.
What to do before the first frost
Zone 8b around Lavon 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.
Why 03/18 isn't a guarantee
03/18 is the middle of 30 years of NOAA records, not a promise. Plant by 02/28 and you're betting against frost in roughly 9 years out of 10. 04/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lavon compares
About 239 days separate Lavon's last and first frost, putting it 8,805 of 40,283 ZIP codes nationally. Within TX, it ranks 1,955 of 2,558.
Learn more
local microclimates explains what one yard in Lavon can differ from the 75121 normal, and zone vs. frost date explains why Zone 8b and Lavon's frost date answer different questions.