Batesland, SD 57756 Frost Dates
57756, near Batesland, SD: the frost window
The last spring frost here typically falls around 05/17, about 262 days from today. Fall's first freeze usually shows up around 09/25, roughly 130 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Batesland in Zone 5a (-20 to -15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Batesland's growing season runs out in roughly 4 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
Why 05/17 isn't a guarantee
05/17 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/03 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/01 and only about 1 year in 10 sees frost after that.
Batesland against the rest of the dataset
About 130 days separate Batesland's last and first frost, putting it 38,426 of 40,283 ZIP codes nationally. Within SD, it ranks 367 of 378.
Learn more
Two guides worth reading on 57756: local microclimates, on what one yard in Batesland can differ from the 57756 normal, and zone vs. frost date, on why Zone 5a and Batesland's frost date answer different questions.