Simmesport, LA 71369 Frost Dates
Frost dates for Simmesport, LA, ZIP 71369
Typically, the last spring freeze lands around 02/28, roughly 184 days out. The first fall frost typically arrives around 11/24, about 270 frost-free days later.
The USDA Plant Hardiness Zone Map puts Simmesport in Zone 9a (20 to 25°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
Zone 9a around Simmesport has about 13 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
Why 02/28 isn't a guarantee
02/28 is the middle of 30 years of NOAA records, not a promise. Plant by 01/31 and you're betting against frost in roughly 9 years out of 10. 03/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Simmesport compares
At roughly 270 frost-free days, Simmesport places 5,605 of 40,283 ZIP codes in this dataset. Within LA, it ranks 354 of 710.
Learn more
the frost range explains how to read the range around Simmesport's dates instead of trusting one, and local microclimates explains what one yard in Simmesport can differ from the 71369 normal.