De Soto, WI 54624 Frost Dates
When can you plant in De Soto, WI?
Typically, the last spring freeze lands around 04/22, roughly 237 days out. The first fall frost typically arrives around 10/17, about 178 frost-free days later.
The USDA Plant Hardiness Zone Map puts De Soto in Zone 5a (-20 to -15°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 7 weeks of growing season left in De Soto before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
Why 04/22 isn't a guarantee
04/22 is the middle of 30 years of NOAA records, not a promise. Plant by 04/06 and you're betting against frost in roughly 9 years out of 10. 05/05 is the safer bet, historically only a 1-in-10 chance of frost that late.
How De Soto compares
De Soto's growing season runs about 178 days, ranking 25,900 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 57 of 860.
Learn more
the frost range covers how to read the range around De Soto's dates instead of trusting one. local microclimates covers what one yard in De Soto can differ from the 54624 normal.