Jacksonville, FL 32218 Frost Dates
32218, near Jacksonville, FL: the frost window
The last spring frost here typically falls around 02/25, about 181 days from today. Fall's first freeze usually shows up around 12/07, roughly 288 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
Jacksonville's growing season runs out in roughly 14 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Jacksonville's last frost
02/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/19 and only about 1 year in 10 sees frost after that.
Jacksonville against the rest of the dataset
About 288 days separate Jacksonville's last and first frost, putting it 4,561 of 40,283 ZIP codes nationally. Within FL, it ranks 1,337 of 1,609.
Learn more
Two guides worth reading on 32218: the frost range, on how to read the range around Jacksonville's dates instead of trusting one, and local microclimates, on what one yard in Jacksonville can differ from the 32218 normal.