Tampa, FL 33677 Frost Dates
33677, near Tampa, FL: the frost window
The last spring frost here typically falls around 01/20, about 145 days from today. Fall's first freeze usually shows up around 01/12, roughly 365 days after the last spring frost.
Zone 10a (30 to 35°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 Tampa, not a forecast for this year.
Stretching the season past the first frost
Tampa'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 01/20 isn't a guarantee
01/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/27 and only about 1 year in 10 sees frost after that.
Tampa against the rest of the dataset
Tampa's growing season runs about 365 days, ranking 92 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 54 of 1,609.
Learn more
Two guides worth reading on 33677: local microclimates, on what one yard in Tampa can differ from the 33677 normal, and zone vs. frost date, on why Zone 10a and Tampa's frost date answer different questions.