Jacksonville, FL 32277 Frost Dates
Frost dates for Jacksonville, FL, ZIP 32277
The last spring frost here typically falls around 02/09, about 165 days from today. The first fall frost typically arrives around 12/31, about 314 frost-free days later.
The USDA Plant Hardiness Zone Map puts Jacksonville 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 Jacksonville has about 18 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 02/09 isn't a guarantee
02/09 is the middle of 30 years of NOAA records, not a promise. Plant by 01/12 and you're betting against frost in roughly 9 years out of 10. 03/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Jacksonville compares
At roughly 314 frost-free days, Jacksonville places 3,427 of 40,283 ZIP codes in this dataset. Within FL, it ranks 1,246 of 1,609.
Learn more
local microclimates explains what one yard in Jacksonville can differ from the 32277 normal, and zone vs. frost date explains why Zone 9b and Jacksonville's frost date answer different questions.