Bay City, TX 77482 Frost Dates
Frost dates for Bay City, TX, ZIP 77482
Typically, the last spring freeze lands around 02/20, roughly 176 days out. The first fall frost typically arrives around 12/03, about 290 frost-free days later.
Zone 9b (25 to 30°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Bay City, not a forecast for this year.
What to do before the first frost
Zone 9b around Bay City 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.
How much risk comes with planting early here
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 Bay City compares
At roughly 290 frost-free days, Bay City places 4,494 of 40,283 ZIP codes in this dataset. Within TX, it ranks 635 of 2,558.
Learn more
local microclimates explains what one yard in Bay City can differ from the 77482 normal, and zone vs. frost date explains why Zone 9b and Bay City's frost date answer different questions.