Louisville, MS 39339 Frost Dates
Louisville, MS: when does the frost end?
Typically, the last spring freeze lands around 03/21, roughly 205 days out. Fall's first freeze usually shows up around 11/13, roughly 235 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Louisville in Zone 8a (10 to 15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
With roughly 11 weeks until Louisville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Louisville's last frost
03/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 03/01 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/09 and only about 1 year in 10 sees frost after that.
Louisville against the rest of the dataset
Louisville's growing season runs about 235 days, ranking 9,599 of 40,283 US ZIP codes measured here, longest to shortest. Within MS, it ranks 328 of 523.
Learn more
Before leaning on 39339's figures: local microclimates explains what one yard in Louisville can differ from the 39339 normal, while zone vs. frost date explains why Zone 8a and Louisville's frost date answer different questions.