FrostDateCheck

Jacksonville, FL 32240 Frost Dates

When can you plant in Jacksonville, FL?

Zone 9b

The last spring frost here typically falls around 02/01, about 157 days from today. The first fall frost typically arrives around 01/05, about 330 frost-free days later.

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.

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 2,984 of 40,283 ZIP codes in this dataset. Within FL, it ranks 1,159 of 1,609.

Learn more

zone vs. frost date covers why Zone 9b and Jacksonville's frost date answer different questions. the frost range covers how to read the range around Jacksonville's dates instead of trusting one.