Magnolia, MS 39649 Frost Dates
39649, near Magnolia, MS: the frost window
Around 03/11 is the usual last spring frost, about 195 days away. Fall's first freeze usually shows up around 11/18, roughly 253 days after the last spring frost.
Zone 8b (15 to 20°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 Magnolia, not a forecast for this year.
Stretching the season past the first frost
Magnolia's growing season runs out in roughly 12 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/11 isn't a guarantee
03/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/02 and only about 1 year in 10 sees frost after that.
Magnolia against the rest of the dataset
At roughly 253 frost-free days, Magnolia places 7,159 of 40,283 ZIP codes in this dataset. Within MS, it ranks 113 of 523.
Learn more
Two guides worth reading on 39649: the frost range, on how to read the range around Magnolia's dates instead of trusting one, and local microclimates, on what one yard in Magnolia can differ from the 39649 normal.