Lake Arthur, LA 70549 Frost Dates
When can you plant in Lake Arthur, LA?
Around 02/10 is the usual last spring frost, about 166 days away. The first fall frost typically arrives around 12/11, about 307 frost-free days later.
The USDA Plant Hardiness Zone Map puts Lake Arthur in Zone 9b (25 to 30°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 15 weeks of growing season left in Lake Arthur before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
02/10 is the middle of 30 years of NOAA records, not a promise. Plant by 01/10 and you're betting against frost in roughly 9 years out of 10. 03/08 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Lake Arthur compares
At roughly 307 frost-free days, Lake Arthur places 3,682 of 40,283 ZIP codes in this dataset. Within LA, it ranks 150 of 710.
Learn more
local microclimates covers what one yard in Lake Arthur can differ from the 70549 normal. zone vs. frost date covers why Zone 9b and Lake Arthur's frost date answer different questions.