Kenosha, WI 53143 Frost Dates
53143, near Kenosha, WI: the frost window
Around 04/19 is the usual last spring frost, about 234 days away. Fall's first freeze usually shows up around 10/26, roughly 189 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Kenosha in Zone 6a (-10 to -5°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Kenosha'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.
Why 04/19 isn't a guarantee
04/19 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/03 and only about 1 year in 10 sees frost after that.
Kenosha against the rest of the dataset
About 189 days separate Kenosha's last and first frost, putting it 21,392 of 40,283 ZIP codes nationally. Within WI, it ranks 7 of 860.
Learn more
Two guides worth reading on 53143: local microclimates, on what one yard in Kenosha can differ from the 53143 normal, and zone vs. frost date, on why Zone 6a and Kenosha's frost date answer different questions.