West Monroe, LA 71240 Frost Dates
71240, near West Monroe, LA: the frost window
Typically, the last spring freeze lands around 03/08, roughly 192 days out. Fall's first freeze usually shows up around 11/15, roughly 253 days after the last spring frost.
West Monroe sits in USDA Zone 8b (15 to 20°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
West Monroe's growing season runs out in roughly 11 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around West Monroe's last frost
03/08 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/25 and only about 1 year in 10 sees frost after that.
West Monroe against the rest of the dataset
At roughly 253 frost-free days, West Monroe places 7,105 of 40,283 ZIP codes in this dataset. Within LA, it ranks 571 of 710.
Learn more
Two guides worth reading on 71240: zone vs. frost date, on why Zone 8b and West Monroe's frost date answer different questions, and the frost range, on how to read the range around West Monroe's dates instead of trusting one.