Gretna, LA 70075 Frost Dates
Gretna, LA: when does the frost end?
The last spring frost here typically falls around 02/10, about 166 days from today. Fall's first freeze usually shows up around 12/17, roughly 309 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 Gretna, not a forecast for this year.
Stretching the season past the first frost
With roughly 16 weeks until Gretna's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
02/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/08 and only about 1 year in 10 sees frost after that.
Gretna against the rest of the dataset
At roughly 309 frost-free days, Gretna places 3,643 of 40,283 ZIP codes in this dataset. Within LA, it ranks 126 of 710.
Learn more
Before leaning on 70075's figures: the frost range explains how to read the range around Gretna's dates instead of trusting one, while local microclimates explains what one yard in Gretna can differ from the 70075 normal.