St. Leo, FL 33578 Frost Dates
When can you plant in St. Leo, FL?
Typically, the last spring freeze lands around 01/31, roughly 156 days out. The first fall frost typically arrives around 01/08, about 336 frost-free days later.
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 St. Leo, not a forecast for this year.
What to do before the first frost
About 19 weeks of growing season left in St. Leo before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
01/31 is the middle of 30 years of NOAA records, not a promise. Plant by 01/03 and you're betting against frost in roughly 9 years out of 10. 02/28 is the safer bet, historically only a 1-in-10 chance of frost that late.
How St. Leo compares
St. Leo's growing season runs about 336 days, ranking 2,729 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 1,096 of 1,609.
Learn more
the frost range covers how to read the range around St. Leo's dates instead of trusting one. local microclimates covers what one yard in St. Leo can differ from the 33578 normal.