Neptune Beach, FL 32246 Frost Dates
When can you plant in Neptune Beach, FL?
Typically, the last spring freeze lands around 02/09, roughly 165 days out. The first fall frost typically arrives around 12/31, about 314 frost-free days later.
The USDA Plant Hardiness Zone Map puts Neptune Beach 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 18 weeks of growing season left in Neptune Beach before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 02/09 isn't a guarantee
02/09 is the middle of 30 years of NOAA records, not a promise. Plant by 01/12 and you're betting against frost in roughly 9 years out of 10. 03/07 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Neptune Beach compares
At roughly 314 frost-free days, Neptune Beach places 3,432 of 40,283 ZIP codes in this dataset. Within FL, it ranks 1,251 of 1,609.
Learn more
zone vs. frost date covers why Zone 9b and Neptune Beach's frost date answer different questions. the frost range covers how to read the range around Neptune Beach's dates instead of trusting one.