Jacksonville, FL 32210 Frost Dates
32210, near Jacksonville, FL: the frost window
Typically, the last spring freeze lands around 02/01, roughly 157 days out. Fall's first freeze usually shows up around 01/05, roughly 330 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Jacksonville in Zone 9b (25 to 30°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Jacksonville's growing season runs out in roughly 19 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
02/01 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 2,974 of 40,283 ZIP codes in this dataset. Within FL, it ranks 1,149 of 1,609.
Learn more
Two guides worth reading on 32210: 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 32210 normal.