Flagler Beach, FL 32143 Frost Dates
Frost dates for Flagler Beach, FL, ZIP 32143
Around 01/24 is the usual last spring frost, about 149 days away. The first fall frost typically arrives around 01/11, about 356 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 Flagler Beach, not a forecast for this year.
What to do before the first frost
Zone 9b around Flagler 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 01/24 isn't a guarantee
01/24 is the middle of 30 years of NOAA records, not a promise. Plant by 02/18 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 Flagler Beach compares
About 356 days separate Flagler Beach's last and first frost, putting it 2,117 of 40,283 ZIP codes nationally. Within FL, it ranks 920 of 1,609.
Learn more
zone vs. frost date explains why Zone 9b and Flagler Beach's frost date answer different questions, and the frost range explains how to read the range around Flagler Beach's dates instead of trusting one.