St. Augustine, FL 32260 Frost Dates
Frost dates for St. Augustine, FL, ZIP 32260
Typically, the last spring freeze lands around 02/01, roughly 157 days out. The first fall frost typically arrives around 01/05, about 334 frost-free days later.
The USDA Plant Hardiness Zone Map puts St. Augustine in Zone 9b (25 to 30°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
Zone 9b around St. Augustine has about 19 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
How much risk comes with planting early here
02/01 is the middle of 30 years of NOAA records, not a promise. Plant by 03/03 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. Augustine compares
At roughly 334 frost-free days, St. Augustine places 2,788 of 40,283 ZIP codes in this dataset. Within FL, it ranks 1,107 of 1,609.
Learn more
zone vs. frost date explains why Zone 9b and St. Augustine's frost date answer different questions, and the frost range explains how to read the range around St. Augustine's dates instead of trusting one.