Fort Myers, FL 33902 Frost Dates
33902, near Fort Myers, FL: the frost window
Typically, the last spring freeze lands around 01/16, roughly 141 days out. Fall's first freeze usually shows up around 01/13, roughly 365 days after the last spring frost.
Fort Myers sits in USDA Zone 10b (35 to 40°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a 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.
Why 01/16 isn't a guarantee
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 537 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 146 of 1,609.
Learn more
Two guides worth reading on 33902: zone vs. frost date, on why Zone 10b and Fort Myers's frost date answer different questions, and the frost range, on how to read the range around Fort Myers's dates instead of trusting one.