Port St. Joe, FL 32456 Frost Dates
Frost dates for Port St. Joe, FL, ZIP 32456
The last spring frost here typically falls around 02/15, about 171 days from today. The first fall frost typically arrives around 12/18, about 307 frost-free days later.
Port St. Joe 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 Port St. Joe has about 16 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.
The actual range around Port St. Joe's last frost
02/15 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. 03/11 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Port St. Joe compares
Port St. Joe's growing season runs about 307 days, ranking 3,680 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 1,283 of 1,609.
Learn more
the frost range explains how to read the range around Port St. Joe's dates instead of trusting one, and local microclimates explains what one yard in Port St. Joe can differ from the 32456 normal.