Cochrane, WI 54622 Frost Dates
When can you plant in Cochrane, WI?
Around 04/23 is the usual last spring frost, about 238 days away. The first fall frost typically arrives around 10/16, about 175 frost-free days later.
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 Cochrane, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Cochrane before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Cochrane's last frost
04/23 is the middle of 30 years of NOAA records, not a promise. Plant by 04/09 and you're betting against frost in roughly 9 years out of 10. 05/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Cochrane compares
About 175 days separate Cochrane's last and first frost, putting it 27,192 of 40,283 ZIP codes nationally. Within WI, it ranks 91 of 860.
Learn more
the frost range covers how to read the range around Cochrane's dates instead of trusting one. local microclimates covers what one yard in Cochrane can differ from the 54622 normal.