FrostDateCheck

Biloxi, MS 39532 Frost Dates

39532, near Biloxi, MS: the frost window

Zone 9a

Around 02/12 is the usual last spring frost, about 168 days away. Fall's first freeze usually shows up around 12/14, roughly 301 days after the last spring frost.

Biloxi sits in USDA Zone 9a (20 to 25°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.

Stretching the season past the first frost

Biloxi's growing season runs out in roughly 15 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.

Why 02/12 isn't a guarantee

02/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/18 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/11 and only about 1 year in 10 sees frost after that.

Biloxi against the rest of the dataset

At roughly 301 frost-free days, Biloxi places 3,934 of 40,283 ZIP codes in this dataset. Within MS, it ranks 3 of 523.

Learn more

Two guides worth reading on 39532: the frost range, on how to read the range around Biloxi's dates instead of trusting one, and local microclimates, on what one yard in Biloxi can differ from the 39532 normal.