Elderon, WI 54429 Frost Dates
Elderon, WI: when does the frost end?
Typically, the last spring freeze lands around 05/06, roughly 251 days out. Fall's first freeze usually shows up around 10/05, roughly 150 days after the last spring frost.
Elderon sits in USDA Zone 4b (-25 to -20°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 5 weeks until Elderon'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
05/06 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/24 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/21 and only about 1 year in 10 sees frost after that.
Elderon against the rest of the dataset
About 150 days separate Elderon's last and first frost, putting it 35,442 of 40,283 ZIP codes nationally. Within WI, it ranks 592 of 860.
Learn more
Before leaning on 54429's figures: the frost range explains how to read the range around Elderon's dates instead of trusting one, while local microclimates explains what one yard in Elderon can differ from the 54429 normal.