Mary Esther, FL 32566 Frost Dates
Mary Esther, FL: when does the frost end?
The last spring frost here typically falls around 03/01, about 185 days from today. Fall's first freeze usually shows up around 11/27, roughly 273 days after the last spring frost.
Zone 9a (20 to 25°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 Mary Esther, not a forecast for this year.
Stretching the season past the first frost
With roughly 13 weeks until Mary Esther's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Mary Esther's last frost
03/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/31 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/23 and only about 1 year in 10 sees frost after that.
Mary Esther against the rest of the dataset
Mary Esther's growing season runs about 273 days, ranking 5,211 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 1,492 of 1,609.
Learn more
Before leaning on 32566's figures: the frost range explains how to read the range around Mary Esther's dates instead of trusting one, while local microclimates explains what one yard in Mary Esther can differ from the 32566 normal.