Chilton, WI 53062 Frost Dates
Chilton, WI: when does the frost end?
Typically, the last spring freeze lands around 05/01, roughly 246 days out. Fall's first freeze usually shows up around 10/14, roughly 162 days after the last spring frost.
Chilton sits in USDA Zone 5b (-15 to -10°F average annual minimum). The dates above are NOAA's 1991-2020 normal at the nearest reporting station, a 30-year average, not a forecast.
Stretching the season past the first frost
With roughly 7 weeks until Chilton's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/19 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/17 and only about 1 year in 10 sees frost after that.
Chilton against the rest of the dataset
About 162 days separate Chilton's last and first frost, putting it 31,724 of 40,283 ZIP codes nationally. Within WI, it ranks 266 of 860.
Learn more
Before leaning on 53062's figures: local microclimates explains what one yard in Chilton can differ from the 53062 normal, while zone vs. frost date explains why Zone 5b and Chilton's frost date answer different questions.