Marion, MS 39305 Frost Dates
Frost dates for Marion, MS, ZIP 39305
The last spring frost here typically falls around 03/16, about 200 days from today. The first fall frost typically arrives around 11/12, about 239 frost-free days later.
Zone 8b (15 to 20°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Marion, not a forecast for this year.
What to do before the first frost
Zone 8b around Marion has about 11 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.
The actual range around Marion's last frost
03/16 is the middle of 30 years of NOAA records, not a promise. Plant by 02/24 and you're betting against frost in roughly 9 years out of 10. 04/03 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Marion compares
About 239 days separate Marion's last and first frost, putting it 8,846 of 40,283 ZIP codes nationally. Within MS, it ranks 267 of 523.
Learn more
the frost range explains how to read the range around Marion's dates instead of trusting one, and local microclimates explains what one yard in Marion can differ from the 39305 normal.