Faith, SD 57758 Frost Dates
57758, near Faith, SD: the frost window
The last spring frost here typically falls around 05/11, about 256 days from today. Fall's first freeze usually shows up around 09/28, roughly 137 days after the last spring frost.
Zone 4b (-25 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 Faith, not a forecast for this year.
Stretching the season past the first frost
Faith'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.
The actual range around Faith's last frost
05/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/27 and only about 1 year in 10 sees frost after that.
Faith against the rest of the dataset
About 137 days separate Faith's last and first frost, putting it 37,576 of 40,283 ZIP codes nationally. Within SD, it ranks 343 of 378.
Learn more
Two guides worth reading on 57758: the frost range, on how to read the range around Faith's dates instead of trusting one, and local microclimates, on what one yard in Faith can differ from the 57758 normal.