Yorktown, TX 77993 Frost Dates
Frost dates for Yorktown, TX, ZIP 77993
Typically, the last spring freeze lands around 02/17, roughly 173 days out. The first fall frost typically arrives around 12/08, about 299 frost-free days later.
The USDA Plant Hardiness Zone Map puts Yorktown in Zone 9a (20 to 25°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 9a around Yorktown has about 15 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 Yorktown's last frost
02/17 is the middle of 30 years of NOAA records, not a promise. Plant by 01/15 and you're betting against frost in roughly 9 years out of 10. 03/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Yorktown compares
At roughly 299 frost-free days, Yorktown places 4,179 of 40,283 ZIP codes in this dataset. Within TX, it ranks 486 of 2,558.
Learn more
local microclimates explains what one yard in Yorktown can differ from the 77993 normal, and zone vs. frost date explains why Zone 9a and Yorktown's frost date answer different questions.