Mandeville, LA 70448 Frost Dates
Mandeville, LA: when does the frost end?
Around 03/12 is the usual last spring frost, about 196 days away. Fall's first freeze usually shows up around 11/18, roughly 253 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Mandeville in Zone 9a (20 to 25°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 12 weeks until Mandeville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/12 isn't a guarantee
03/12 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/13 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/03 and only about 1 year in 10 sees frost after that.
Mandeville against the rest of the dataset
About 253 days separate Mandeville's last and first frost, putting it 7,099 of 40,283 ZIP codes nationally. Within LA, it ranks 565 of 710.
Learn more
Before leaning on 70448's figures: local microclimates explains what one yard in Mandeville can differ from the 70448 normal, while zone vs. frost date explains why Zone 9a and Mandeville's frost date answer different questions.