Pasadena, TX 77209 Frost Dates
Frost dates for Pasadena, TX, ZIP 77209
Typically, the last spring freeze lands around 01/30, roughly 155 days out. The first fall frost typically arrives around 12/28, about 330 frost-free days later.
Pasadena 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 Pasadena has about 17 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 01/30 isn't a guarantee
01/30 is the middle of 30 years of NOAA records, not a promise. Plant by 03/01 and you're betting against frost in roughly 9 years out of 10. 12/29 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Pasadena compares
At roughly 330 frost-free days, Pasadena places 2,992 of 40,283 ZIP codes in this dataset. Within TX, it ranks 145 of 2,558.
Learn more
local microclimates explains what one yard in Pasadena can differ from the 77209 normal, and zone vs. frost date explains why Zone 9b and Pasadena's frost date answer different questions.