Fort Myers Beach, FL 33931 Frost Dates
33931, near Fort Myers Beach, FL: the frost window
The last spring frost here typically falls around 01/16, about 141 days from today. Fall's first freeze usually shows up around 01/13, roughly 365 days after the last spring frost.
Zone 10b (35 to 40°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 Fort Myers Beach, not a forecast for this year.
Stretching the season past the first frost
Fort Myers Beach's growing season runs out in roughly 20 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
01/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 02/02 and only about 1 year in 10 sees frost after that.
Fort Myers Beach against the rest of the dataset
At roughly 365 frost-free days, Fort Myers Beach places 1,876 of 40,283 ZIP codes in this dataset. Within FL, it ranks 818 of 1,609.
Learn more
Two guides worth reading on 33931: the frost range, on how to read the range around Fort Myers Beach's dates instead of trusting one, and local microclimates, on what one yard in Fort Myers Beach can differ from the 33931 normal.