Port St. Lucie, FL 34953 Frost Dates
When can you plant in Port St. Lucie, FL?
Typically, the last spring freeze lands around 01/23, roughly 148 days out. The first fall frost typically arrives around 01/18, about 365 frost-free days later.
Port St. Lucie 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.
What to do before the first frost
About 20 weeks of growing season left in Port St. Lucie 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
01/23 is the middle of 30 years of NOAA records, not a promise. Plant by 01/04 and you're betting against frost in roughly 9 years out of 10. 02/10 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Port St. Lucie compares
Port St. Lucie's growing season runs about 365 days, ranking 316 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 75 of 1,609.
Learn more
the frost range covers how to read the range around Port St. Lucie's dates instead of trusting one. local microclimates covers what one yard in Port St. Lucie can differ from the 34953 normal.