Slidell, LA 70460 Frost Dates
Slidell, LA: when does the frost end?
The last spring frost here typically falls around 03/03, about 187 days from today. Fall's first freeze usually shows up around 11/21, roughly 263 days after the last spring frost.
Zone 9a (20 to 25°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 Slidell, not a forecast for this year.
Stretching the season past the first frost
With roughly 12 weeks until Slidell's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
03/03 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/04 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/26 and only about 1 year in 10 sees frost after that.
Slidell against the rest of the dataset
At roughly 263 frost-free days, Slidell places 6,099 of 40,283 ZIP codes in this dataset. Within LA, it ranks 473 of 710.
Learn more
Before leaning on 70460's figures: the frost range explains how to read the range around Slidell's dates instead of trusting one, while local microclimates explains what one yard in Slidell can differ from the 70460 normal.