Jacksonville, FL 32216 Frost Dates
Jacksonville, FL: when does the frost end?
The last spring frost here typically falls around 02/09, about 165 days from today. Fall's first freeze usually shows up around 12/31, roughly 314 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 18 weeks until Jacksonville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 02/09 isn't a guarantee
02/09 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/07 and only about 1 year in 10 sees frost after that.
Jacksonville against the rest of the dataset
About 314 days separate Jacksonville's last and first frost, putting it 3,426 of 40,283 ZIP codes nationally. Within FL, it ranks 1,245 of 1,609.
Learn more
Before leaning on 32216's figures: zone vs. frost date explains why Zone 9b and Jacksonville's frost date answer different questions, while the frost range explains how to read the range around Jacksonville's dates instead of trusting one.