St. Petersburg, FL 33704 Frost Dates
When can you plant in St. Petersburg, FL?
Typically, the last spring freeze lands around 01/17, roughly 142 days out. The first fall frost typically arrives around 01/15, about 365 frost-free days later.
The USDA Plant Hardiness Zone Map puts St. Petersburg in Zone 10b (35 to 40°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 20 weeks of growing season left in St. Petersburg before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 01/17 isn't a guarantee
01/17 is the middle of 30 years of NOAA records, not a promise. Plant by 02/05 and you're betting against frost in roughly 9 years out of 10. 12/31 is the safer bet, historically only a 1-in-10 chance of frost that late.
How St. Petersburg compares
About 365 days separate St. Petersburg's last and first frost, putting it 312 of 40,283 ZIP codes nationally. Within FL, it ranks 71 of 1,609.
Learn more
the frost range covers how to read the range around St. Petersburg's dates instead of trusting one. local microclimates covers what one yard in St. Petersburg can differ from the 33704 normal.