Callahan, FL 32035 Frost Dates
32035, near Callahan, FL: the frost window
The last spring frost here typically falls around 02/25, about 181 days from today. Fall's first freeze usually shows up around 12/07, roughly 288 days after the last spring frost.
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 Callahan, not a forecast for this year.
Stretching the season past the first frost
Callahan's growing season runs out in roughly 14 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 02/25 isn't a guarantee
02/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/19 and only about 1 year in 10 sees frost after that.
Callahan against the rest of the dataset
Callahan's growing season runs about 288 days, ranking 4,569 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 1,341 of 1,609.
Learn more
Two guides worth reading on 32035: zone vs. frost date, on why Zone 9b and Callahan's frost date answer different questions, and the frost range, on how to read the range around Callahan's dates instead of trusting one.