St. Augustine, FL 32085 Frost Dates
32085, near St. Augustine, FL: the frost window
Typically, the last spring freeze lands around 02/01, roughly 157 days out. Fall's first freeze usually shows up around 01/05, roughly 334 days after the last spring frost.
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 St. Augustine, not a forecast for this year.
Stretching the season past the first frost
St. Augustine's growing season runs out in roughly 19 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
02/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/31 and only about 1 year in 10 sees frost after that.
St. Augustine against the rest of the dataset
St. Augustine's growing season runs about 334 days, ranking 2,786 of 40,283 US ZIP codes measured here, longest to shortest. Within FL, it ranks 1,105 of 1,609.
Learn more
Two guides worth reading on 32085: the frost range, on how to read the range around St. Augustine's dates instead of trusting one, and local microclimates, on what one yard in St. Augustine can differ from the 32085 normal.