Fort Myers, FL 33911 Frost Dates
33911, near Fort Myers, FL: the frost window
Around 01/16 is the usual last spring frost, about 141 days away. Fall's first freeze usually shows up around 01/13, roughly 365 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Fort Myers in Zone 10b (35 to 40°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Fort Myers'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 against the rest of the dataset
Fort Myers's growing season runs about 365 days, ranking 540 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 149 of 1,609.
Learn more
Two guides worth reading on 33911: the frost range, on how to read the range around Fort Myers's dates instead of trusting one, and local microclimates, on what one yard in Fort Myers can differ from the 33911 normal.