Neptune Beach, FL 32266 Frost Dates
Frost dates for Neptune Beach, FL, ZIP 32266
Typically, the last spring freeze lands around 02/01, roughly 157 days out. The first fall frost typically arrives around 01/05, about 332 frost-free days later.
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 Neptune Beach, not a forecast for this year.
What to do before the first frost
Zone 9b around Neptune Beach has about 19 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 02/01 isn't a guarantee
02/01 is the middle of 30 years of NOAA records, not a promise. Plant by 01/01 and you're betting against frost in roughly 9 years out of 10. 03/01 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Neptune Beach compares
At roughly 332 frost-free days, Neptune Beach places 2,874 of 40,283 ZIP codes in this dataset. Within FL, it ranks 1,122 of 1,609.
Learn more
zone vs. frost date explains why Zone 9b and Neptune Beach's frost date answer different questions, and the frost range explains how to read the range around Neptune Beach's dates instead of trusting one.