Jacksonville, FL 32239 Frost Dates
When can you plant in Jacksonville, FL?
Typically, the last spring freeze lands around 02/01, roughly 157 days out. 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.
The actual range around Jacksonville's last frost
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
At roughly 330 frost-free days, Jacksonville places 2,983 of 40,283 ZIP codes in this dataset. Within FL, it ranks 1,158 of 1,609.
Learn more
the frost range covers how to read the range around Jacksonville's dates instead of trusting one. local microclimates covers what one yard in Jacksonville can differ from the 32239 normal.