San Antonio, FL 33537 Frost Dates
When can you plant in San Antonio, FL?
The last spring frost here typically falls around 03/01, about 185 days from today. The first fall frost typically arrives around 12/05, about 281 frost-free days later.
Zone 9b (25 to 30°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 San Antonio, not a forecast for this year.
What to do before the first frost
About 14 weeks of growing season left in San Antonio before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around San Antonio's last frost
03/01 is the middle of 30 years of NOAA records, not a promise. Plant by 01/30 and you're betting against frost in roughly 9 years out of 10. 03/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How San Antonio compares
At roughly 281 frost-free days, San Antonio places 4,808 of 40,283 ZIP codes in this dataset. Within FL, it ranks 1,414 of 1,609.
Learn more
the frost range covers how to read the range around San Antonio's dates instead of trusting one. local microclimates covers what one yard in San Antonio can differ from the 33537 normal.