Napoleonville, LA 70339 Frost Dates
Napoleonville, LA: when does the frost end?
Typically, the last spring freeze lands around 02/21, roughly 177 days out. Fall's first freeze usually shows up around 12/05, roughly 291 days after the last spring frost.
Napoleonville sits in USDA Zone 9b (25 to 30°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
With roughly 14 weeks until Napoleonville's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 02/21 isn't a guarantee
02/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/15 and only about 1 year in 10 sees frost after that.
Napoleonville against the rest of the dataset
At roughly 291 frost-free days, Napoleonville places 4,477 of 40,283 ZIP codes in this dataset. Within LA, it ranks 239 of 710.
Learn more
Before leaning on 70339's figures: local microclimates explains what one yard in Napoleonville can differ from the 70339 normal, while zone vs. frost date explains why Zone 9b and Napoleonville's frost date answer different questions.