Marion, MS 39303 Frost Dates
When can you plant in Marion, MS?
Around 03/16 is the usual last spring frost, about 200 days away. 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
About 11 weeks of growing season left in Marion before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
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
At roughly 239 frost-free days, Marion places 8,844 of 40,283 ZIP codes in this dataset. Within MS, it ranks 265 of 523.
Learn more
the frost range covers how to read the range around Marion's dates instead of trusting one. local microclimates covers what one yard in Marion can differ from the 39303 normal.