Bridge City, TX 77670 Frost Dates
Frost dates for Bridge City, TX, ZIP 77670
The last spring frost here typically falls around 02/14, about 170 days from today. The first fall frost typically arrives around 12/07, about 301 frost-free days later.
Bridge City sits in USDA Zone 9b (25 to 30°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 9b around Bridge 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
02/14 is the middle of 30 years of NOAA records, not a promise. Plant by 01/17 and you're betting against frost in roughly 9 years out of 10. 03/13 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Bridge City compares
At roughly 301 frost-free days, Bridge City places 3,967 of 40,283 ZIP codes in this dataset. Within TX, it ranks 308 of 2,558.
Learn more
zone vs. frost date explains why Zone 9b and Bridge City's frost date answer different questions, and the frost range explains how to read the range around Bridge City's dates instead of trusting one.