Duncan, MS 38740 Frost Dates
Duncan, MS: when does the frost end?
The last spring frost here typically falls around 03/16, about 200 days from today. Fall's first freeze usually shows up around 11/12, roughly 243 days after the last spring frost.
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 Duncan, not a forecast for this year.
Stretching the season past the first frost
With roughly 11 weeks until Duncan's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
03/16 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 02/26 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 04/02 and only about 1 year in 10 sees frost after that.
Duncan against the rest of the dataset
Duncan's growing season runs about 243 days, ranking 8,335 of 40,283 US ZIP codes measured here, longest to shortest. Within MS, it ranks 228 of 523.
Learn more
Before leaning on 38740's figures: zone vs. frost date explains why Zone 8b and Duncan's frost date answer different questions, while the frost range explains how to read the range around Duncan's dates instead of trusting one.