Cornell, WI 54732 Frost Dates
When can you plant in Cornell, WI?
The last spring frost here typically falls around 05/05, about 250 days from today. The first fall frost typically arrives around 10/02, about 149 frost-free days later.
The USDA Plant Hardiness Zone Map puts Cornell in Zone 4b (-25 to -20°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 5 weeks of growing season left in Cornell before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Cornell's last frost
05/05 is the middle of 30 years of NOAA records, not a promise. Plant by 04/21 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 Cornell compares
At roughly 149 frost-free days, Cornell places 35,531 of 40,283 ZIP codes in this dataset. Within WI, it ranks 595 of 860.
Learn more
local microclimates covers what one yard in Cornell can differ from the 54732 normal. zone vs. frost date covers why Zone 4b and Cornell's frost date answer different questions.