Pepin, WI 54759 Frost Dates
When can you plant in Pepin, WI?
Around 05/01 is the usual last spring frost, about 246 days away. The first fall frost typically arrives around 10/10, about 162 frost-free days later.
Pepin 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 Pepin 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 04/17 and you're betting against frost in roughly 9 years out of 10. 05/15 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Pepin compares
At roughly 162 frost-free days, Pepin places 31,821 of 40,283 ZIP codes in this dataset. Within WI, it ranks 280 of 860.
Learn more
local microclimates covers what one yard in Pepin can differ from the 54759 normal. zone vs. frost date covers why Zone 4b and Pepin's frost date answer different questions.