Decatur, MS 39327 Frost Dates
Frost dates for Decatur, MS, ZIP 39327
The last spring frost here typically falls around 03/25, about 209 days from today. The first fall frost typically arrives around 11/02, about 222 frost-free days later.
Decatur sits in USDA Zone 8b (15 to 20°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.
What to do before the first frost
Zone 8b around Decatur has about 9 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 03/25 isn't a guarantee
03/25 is the middle of 30 years of NOAA records, not a promise. Plant by 03/04 and you're betting against frost in roughly 9 years out of 10. 04/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Decatur compares
Decatur's growing season runs about 222 days, ranking 12,274 of 40,283 US ZIP codes measured here, longest to shortest. Within MS, it ranks 431 of 523.
Learn more
the frost range explains how to read the range around Decatur's dates instead of trusting one, and local microclimates explains what one yard in Decatur can differ from the 39327 normal.