Zachary, LA 70791 Frost Dates
Zachary, LA: when does the frost end?
The last spring frost here typically falls around 02/25, about 181 days from today. Fall's first freeze usually shows up around 11/26, roughly 276 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 Zachary, not a forecast for this year.
Stretching the season past the first frost
With roughly 13 weeks until Zachary's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Zachary's last frost
02/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/29 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/19 and only about 1 year in 10 sees frost after that.
Zachary against the rest of the dataset
Zachary's growing season runs about 276 days, ranking 5,070 of 40,283 US ZIP codes measured here, longest to shortest. Within LA, it ranks 283 of 710.
Learn more
Before leaning on 70791's figures: the frost range explains how to read the range around Zachary's dates instead of trusting one, while local microclimates explains what one yard in Zachary can differ from the 70791 normal.