De Kalb, MS 39354 Frost Dates
Frost dates for De Kalb, MS, ZIP 39354
Around 03/20 is the usual last spring frost, about 204 days away. The first fall frost typically arrives around 11/09, about 235 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 De Kalb, not a forecast for this year.
What to do before the first frost
Zone 8b around De Kalb has about 10 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 03/20 isn't a guarantee
03/20 is the middle of 30 years of NOAA records, not a promise. Plant by 02/28 and you're betting against frost in roughly 9 years out of 10. 04/09 is the safer bet, historically only a 1-in-10 chance of frost that late.
How De Kalb compares
About 235 days separate De Kalb's last and first frost, putting it 9,631 of 40,283 ZIP codes nationally. Within MS, it ranks 330 of 523.
Learn more
zone vs. frost date explains why Zone 8b and De Kalb's frost date answer different questions, and the frost range explains how to read the range around De Kalb's dates instead of trusting one.