FrostDateCheck

Winneconne, WI 54906 Frost Dates

When can you plant in Winneconne, WI?

Zone 5b

The last spring frost here typically falls around 04/24, about 239 days from today. The first fall frost typically arrives around 10/20, about 178 frost-free days later.

Zone 5b (-15 to -10°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 Winneconne, not a forecast for this year.

What to do before the first frost

About 8 weeks of growing season left in Winneconne before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.

Why 04/24 isn't a guarantee

04/24 is the middle of 30 years of NOAA records, not a promise. Plant by 04/10 and you're betting against frost in roughly 9 years out of 10. 05/08 is the safer bet, historically only a 1-in-10 chance of frost that late.

How Winneconne compares

At roughly 178 frost-free days, Winneconne places 25,740 of 40,283 ZIP codes in this dataset. Within WI, it ranks 51 of 860.

Learn more

zone vs. frost date covers why Zone 5b and Winneconne's frost date answer different questions. the frost range covers how to read the range around Winneconne's dates instead of trusting one.