Largo, FL 33778 Frost Dates
Largo, FL: when does the frost end?
Around 01/17 is the usual last spring frost, about 142 days away. Fall's first freeze usually shows up around 01/14, 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 Largo, not a forecast for this year.
Stretching the season past the first frost
With roughly 20 weeks until Largo's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 01/17 isn't a guarantee
01/17 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 02/06 and only about 1 year in 10 sees frost after that.
Largo against the rest of the dataset
About 365 days separate Largo's last and first frost, putting it 678 of 40,283 ZIP codes nationally. Within FL, it ranks 226 of 1,609.
Learn more
Before leaning on 33778's figures: the frost range explains how to read the range around Largo's dates instead of trusting one, while local microclimates explains what one yard in Largo can differ from the 33778 normal.