Sulphur, LA 70602 Frost Dates
Sulphur, 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.
Sulphur sits in USDA Zone 9a (20 to 25°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 13 weeks until Sulphur'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
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.
Sulphur against the rest of the dataset
About 267 days separate Sulphur's last and first frost, putting it 5,832 of 40,283 ZIP codes nationally. Within LA, it ranks 426 of 710.
Learn more
Before leaning on 70602's figures: local microclimates explains what one yard in Sulphur can differ from the 70602 normal, while zone vs. frost date explains why Zone 9a and Sulphur's frost date answer different questions.