Forsan, TX 79739 Frost Dates
Frost dates for Forsan, TX, ZIP 79739
Around 04/02 is the usual last spring frost, about 217 days away. The first fall frost typically arrives around 11/05, about 215 frost-free days later.
The USDA Plant Hardiness Zone Map puts Forsan in Zone 8a (10 to 15°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 8a around Forsan has about 10 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 Forsan's last frost
04/02 is the middle of 30 years of NOAA records, not a promise. Plant by 03/16 and you're betting against frost in roughly 9 years out of 10. 04/20 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Forsan compares
Forsan's growing season runs about 215 days, ranking 14,195 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 2,357 of 2,558.
Learn more
local microclimates explains what one yard in Forsan can differ from the 79739 normal, and zone vs. frost date explains why Zone 8a and Forsan's frost date answer different questions.