Jacksonville, FL 32231 Frost Dates
When can you plant in Jacksonville, FL?
The last spring frost here typically falls around 02/01, about 157 days from today. The first fall frost typically arrives around 01/05, about 330 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 Jacksonville, not a forecast for this year.
What to do before the first frost
About 19 weeks of growing season left in Jacksonville before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 02/01 isn't a guarantee
02/01 is the middle of 30 years of NOAA records, not a promise. Plant by 03/03 and you're betting against frost in roughly 9 years out of 10. 12/31 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Jacksonville compares
About 330 days separate Jacksonville's last and first frost, putting it 2,978 of 40,283 ZIP codes nationally. Within FL, it ranks 1,153 of 1,609.
Learn more
local microclimates covers what one yard in Jacksonville can differ from the 32231 normal. zone vs. frost date covers why Zone 9b and Jacksonville's frost date answer different questions.