Dennis, TX 76439 Frost Dates
When can you plant in Dennis, TX?
Around 03/24 is the usual last spring frost, about 208 days away. The first fall frost typically arrives around 11/09, about 228 frost-free days later.
Dennis sits in USDA Zone 8a (10 to 15°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
About 10 weeks of growing season left in Dennis before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 03/24 isn't a guarantee
03/24 is the middle of 30 years of NOAA records, not a promise. Plant by 03/02 and you're betting against frost in roughly 9 years out of 10. 04/17 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Dennis compares
About 228 days separate Dennis's last and first frost, putting it 10,878 of 40,283 ZIP codes nationally. Within TX, it ranks 2,199 of 2,558.
Learn more
the frost range covers how to read the range around Dennis's dates instead of trusting one. local microclimates covers what one yard in Dennis can differ from the 76439 normal.