Waterproof, LA 71375 Frost Dates
71375, near Waterproof, LA: the frost window
Around 03/16 is the usual last spring frost, about 200 days away. Fall's first freeze usually shows up around 11/09, roughly 237 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Waterproof in Zone 8b (15 to 20°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Waterproof's growing season runs out in roughly 10 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
03/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/06 and only about 1 year in 10 sees frost after that.
Waterproof against the rest of the dataset
Waterproof's growing season runs about 237 days, ranking 9,147 of 40,283 US ZIP codes measured here, longest to shortest. Within LA, it ranks 671 of 710.
Learn more
Two guides worth reading on 71375: the frost range, on how to read the range around Waterproof's dates instead of trusting one, and local microclimates, on what one yard in Waterproof can differ from the 71375 normal.