Milladore, WI 54454 Frost Dates
Milladore, WI: when does the frost end?
Typically, the last spring freeze lands around 05/05, roughly 250 days out. Fall's first freeze usually shows up around 10/05, roughly 150 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Milladore in Zone 4b (-25 to -20°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
With roughly 5 weeks until Milladore'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
05/05 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/22 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/20 and only about 1 year in 10 sees frost after that.
Milladore against the rest of the dataset
About 150 days separate Milladore's last and first frost, putting it 35,416 of 40,283 ZIP codes nationally. Within WI, it ranks 590 of 860.
Learn more
Before leaning on 54454's figures: zone vs. frost date explains why Zone 4b and Milladore's frost date answer different questions, while the frost range explains how to read the range around Milladore's dates instead of trusting one.