Needville, TX 77420 Frost Dates
Frost dates for Needville, TX, ZIP 77420
Around 02/20 is the usual last spring frost, about 176 days away. The first fall frost typically arrives around 12/03, about 290 frost-free days later.
The USDA Plant Hardiness Zone Map puts Needville in Zone 9b (25 to 30°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 9b around Needville has about 14 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.
Why 02/20 isn't a guarantee
02/20 is the middle of 30 years of NOAA records, not a promise. Plant by 01/19 and you're betting against frost in roughly 9 years out of 10. 03/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Needville compares
Needville's growing season runs about 290 days, ranking 4,525 of 40,283 US ZIP codes measured here, longest to shortest. Within TX, it ranks 659 of 2,558.
Learn more
local microclimates explains what one yard in Needville can differ from the 77420 normal, and zone vs. frost date explains why Zone 9b and Needville's frost date answer different questions.