Walworth, WI 53184 Frost Dates
53184, near Walworth, WI: the frost window
Typically, the last spring freeze lands around 04/28, roughly 243 days out. Fall's first freeze usually shows up around 10/14, roughly 168 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Walworth in Zone 5b (-15 to -10°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
Walworth's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/28 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 05/14 and only about 1 year in 10 sees frost after that.
Walworth against the rest of the dataset
About 168 days separate Walworth's last and first frost, putting it 29,719 of 40,283 ZIP codes nationally. Within WI, it ranks 144 of 860.
Learn more
Two guides worth reading on 53184: the frost range, on how to read the range around Walworth's dates instead of trusting one, and local microclimates, on what one yard in Walworth can differ from the 53184 normal.