Kerkhoven, MN 56252 Frost Dates
When can you plant in Kerkhoven, MN?
Typically, the last spring freeze lands around 05/01, roughly 246 days out. The first fall frost typically arrives around 10/06, about 156 frost-free days later.
Kerkhoven 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 6 weeks of growing season left in Kerkhoven before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 05/01 isn't a guarantee
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/19 and you're betting against frost in roughly 9 years out of 10. 05/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Kerkhoven compares
About 156 days separate Kerkhoven's last and first frost, putting it 33,751 of 40,283 ZIP codes nationally. Within MN, it ranks 324 of 943.
Learn more
zone vs. frost date covers why Zone 4b and Kerkhoven's frost date answer different questions. the frost range covers how to read the range around Kerkhoven's dates instead of trusting one.