Westwego, LA 70118 Frost Dates
70118, near Westwego, LA: the frost window
Around 01/24 is the usual last spring frost, about 149 days away. Fall's first freeze usually shows up around 01/02, roughly 341 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Westwego in Zone 9b (25 to 30°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
Westwego'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.
Why 01/24 isn't a guarantee
01/24 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 12/28 and only about 1 year in 10 sees frost after that.
Westwego against the rest of the dataset
At roughly 341 frost-free days, Westwego places 2,610 of 40,283 ZIP codes in this dataset. Within LA, it ranks 20 of 710.
Learn more
Two guides worth reading on 70118: zone vs. frost date, on why Zone 9b and Westwego's frost date answer different questions, and the frost range, on how to read the range around Westwego's dates instead of trusting one.