Troy, TX 76579 Frost Dates
When can you plant in Troy, TX?
Around 03/14 is the usual last spring frost, about 198 days away. The first fall frost typically arrives around 11/20, about 251 frost-free days later.
The USDA Plant Hardiness Zone Map puts Troy in Zone 8b (15 to 20°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
About 12 weeks of growing season left in Troy before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 03/14 isn't a guarantee
03/14 is the middle of 30 years of NOAA records, not a promise. Plant by 02/22 and you're betting against frost in roughly 9 years out of 10. 04/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Troy compares
Troy's growing season runs about 251 days, ranking 7,331 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 1,619 of 2,558.
Learn more
local microclimates covers what one yard in Troy can differ from the 76579 normal. zone vs. frost date covers why Zone 8b and Troy's frost date answer different questions.