Shorewood, WI 53212 Frost Dates
53212, near Shorewood, WI: the frost window
The last spring frost here typically falls around 04/26, about 241 days from today. Fall's first freeze usually shows up around 10/22, roughly 177 days after the last spring frost.
Zone 6a (-10 to -5°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 Shorewood, not a forecast for this year.
Stretching the season past the first frost
Shorewood's growing season runs out in roughly 8 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Shorewood's last frost
04/26 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/12 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/12 and only about 1 year in 10 sees frost after that.
Shorewood against the rest of the dataset
About 177 days separate Shorewood's last and first frost, putting it 26,055 of 40,283 ZIP codes nationally. Within WI, it ranks 76 of 860.
Learn more
Two guides worth reading on 53212: local microclimates, on what one yard in Shorewood can differ from the 53212 normal, and zone vs. frost date, on why Zone 6a and Shorewood's frost date answer different questions.