Hammond, LA 70401 Frost Dates
Hammond, LA: when does the frost end?
Typically, the last spring freeze lands around 03/08, roughly 192 days out. Fall's first freeze usually shows up around 11/19, roughly 257 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 Hammond, not a forecast for this year.
Stretching the season past the first frost
With roughly 12 weeks until Hammond's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/08 isn't a guarantee
03/08 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/31 and only about 1 year in 10 sees frost after that.
Hammond against the rest of the dataset
At roughly 257 frost-free days, Hammond places 6,677 of 40,283 ZIP codes in this dataset. Within LA, it ranks 508 of 710.
Learn more
Before leaning on 70401's figures: zone vs. frost date explains why Zone 9a and Hammond's frost date answer different questions, while the frost range explains how to read the range around Hammond's dates instead of trusting one.