Emery, SD 57332 Frost Dates
57332, near Emery, SD: the frost window
The last spring frost here typically falls around 05/01, about 246 days from today. Fall's first freeze usually shows up around 10/04, roughly 156 days after the last spring frost.
Zone 5a (-20 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 Emery, not a forecast for this year.
Stretching the season past the first frost
Emery's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Emery's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/14 and only about 1 year in 10 sees frost after that.
Emery against the rest of the dataset
At roughly 156 frost-free days, Emery places 33,784 of 40,283 ZIP codes in this dataset. Within SD, it ranks 87 of 378.
Learn more
Two guides worth reading on 57332: local microclimates, on what one yard in Emery can differ from the 57332 normal, and zone vs. frost date, on why Zone 5a and Emery's frost date answer different questions.