Safety Harbor, FL 33761 Frost Dates
Safety Harbor, FL: when does the frost end?
Typically, the last spring freeze lands around 01/20, roughly 145 days out. Fall's first freeze usually shows up around 01/09, roughly 354 days after the last spring frost.
Safety Harbor sits in USDA Zone 10a (30 to 35°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
With roughly 19 weeks until Safety Harbor's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
01/20 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/14 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/29 and only about 1 year in 10 sees frost after that.
Safety Harbor against the rest of the dataset
About 354 days separate Safety Harbor's last and first frost, putting it 2,192 of 40,283 ZIP codes nationally. Within FL, it ranks 957 of 1,609.
Learn more
Before leaning on 33761's figures: the frost range explains how to read the range around Safety Harbor's dates instead of trusting one, while local microclimates explains what one yard in Safety Harbor can differ from the 33761 normal.