Westlake, LA 70669 Frost Dates
Westlake, LA: when does the frost end?
The last spring frost here typically falls around 03/02, about 186 days from today. Fall's first freeze usually shows up around 11/25, roughly 267 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 Westlake, not a forecast for this year.
Stretching the season past the first frost
With roughly 13 weeks until Westlake's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
Why 03/02 isn't a guarantee
03/02 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 01/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 03/26 and only about 1 year in 10 sees frost after that.
Westlake against the rest of the dataset
At roughly 267 frost-free days, Westlake places 5,851 of 40,283 ZIP codes in this dataset. Within LA, it ranks 437 of 710.
Learn more
Before leaning on 70669's figures: local microclimates explains what one yard in Westlake can differ from the 70669 normal, while zone vs. frost date explains why Zone 9a and Westlake's frost date answer different questions.