Hoven, SD 57450 Frost Dates
When can you plant in Hoven, SD?
Typically, the last spring freeze lands around 05/08, roughly 253 days out. The first fall frost typically arrives around 10/01, about 145 frost-free days later.
Hoven sits in USDA Zone 4b (-25 to -20°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
What to do before the first frost
About 5 weeks of growing season left in Hoven before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/08 isn't a guarantee
05/08 is the middle of 30 years of NOAA records, not a promise. Plant by 04/26 and you're betting against frost in roughly 9 years out of 10. 05/21 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Hoven compares
At roughly 145 frost-free days, Hoven places 36,272 of 40,283 ZIP codes in this dataset. Within SD, it ranks 243 of 378.
Learn more
zone vs. frost date covers why Zone 4b and Hoven's frost date answer different questions. the frost range covers how to read the range around Hoven's dates instead of trusting one.