Kenner, LA 70057 Frost Dates
70057, near Kenner, LA: the frost window
Typically, the last spring freeze lands around 01/30, roughly 155 days out. Fall's first freeze usually shows up around 12/31, roughly 333 days after the last spring frost.
Zone 9b (25 to 30°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 Kenner, not a forecast for this year.
Stretching the season past the first frost
Kenner's growing season runs out in roughly 18 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
01/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/27 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/29 and only about 1 year in 10 sees frost after that.
Kenner against the rest of the dataset
About 333 days separate Kenner's last and first frost, putting it 2,827 of 40,283 ZIP codes nationally. Within LA, it ranks 33 of 710.
Learn more
Two guides worth reading on 70057: local microclimates, on what one yard in Kenner can differ from the 70057 normal, and zone vs. frost date, on why Zone 9b and Kenner's frost date answer different questions.