Jacksonville, TX 75766 Frost Dates
Frost dates for Jacksonville, TX, ZIP 75766
The last spring frost here typically falls around 03/07, about 191 days from today. The first fall frost typically arrives around 11/25, about 263 frost-free days later.
Jacksonville sits in USDA Zone 8b (15 to 20°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
Zone 8b around Jacksonville 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.
How much risk comes with planting early here
03/07 is the middle of 30 years of NOAA records, not a promise. Plant by 02/15 and you're betting against frost in roughly 9 years out of 10. 03/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Jacksonville compares
Jacksonville's growing season runs about 263 days, ranking 6,100 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 1,112 of 2,558.
Learn more
the frost range explains how to read the range around Jacksonville's dates instead of trusting one, and local microclimates explains what one yard in Jacksonville can differ from the 75766 normal.