Jacksonville, FL 32209 Frost Dates
Jacksonville, FL: when does the frost end?
The last spring frost here typically falls around 02/01, about 157 days from today. Fall's first freeze usually shows up around 01/05, roughly 330 days after the last spring frost.
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.
Stretching the season past the first frost
With roughly 19 weeks until Jacksonville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 02/01 isn't a guarantee
02/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/31 and only about 1 year in 10 sees frost after that.
Jacksonville against the rest of the dataset
At roughly 330 frost-free days, Jacksonville places 2,973 of 40,283 ZIP codes in this dataset. Within FL, it ranks 1,148 of 1,609.
Learn more
Before leaning on 32209's figures: local microclimates explains what one yard in Jacksonville can differ from the 32209 normal, while zone vs. frost date explains why Zone 9b and Jacksonville's frost date answer different questions.