Sherman, MS 38826 Frost Dates
38826, near Sherman, MS: the frost window
Around 03/21 is the usual last spring frost, about 205 days away. Fall's first freeze usually shows up around 11/10, roughly 235 days after the last spring frost.
Zone 8a (10 to 15°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 Sherman, not a forecast for this year.
Stretching the season past the first frost
Sherman's growing season runs out in roughly 11 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 03/21 isn't a guarantee
03/21 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/06 and only about 1 year in 10 sees frost after that.
Sherman against the rest of the dataset
About 235 days separate Sherman's last and first frost, putting it 9,643 of 40,283 ZIP codes nationally. Within MS, it ranks 331 of 523.
Learn more
Two guides worth reading on 38826: zone vs. frost date, on why Zone 8a and Sherman's frost date answer different questions, and the frost range, on how to read the range around Sherman's dates instead of trusting one.