Denmark, WI 54208 Frost Dates
Denmark, WI: when does the frost end?
The last spring frost here typically falls around 05/06, about 251 days from today. Fall's first freeze usually shows up around 10/12, roughly 158 days after the last spring frost.
Zone 5b (-15 to -10°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Denmark, not a forecast for this year.
Stretching the season past the first frost
With roughly 6 weeks until Denmark'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 04/22 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.
Denmark against the rest of the dataset
About 158 days separate Denmark's last and first frost, putting it 32,985 of 40,283 ZIP codes nationally. Within WI, it ranks 366 of 860.
Learn more
Before leaning on 54208's figures: the frost range explains how to read the range around Denmark's dates instead of trusting one, while local microclimates explains what one yard in Denmark can differ from the 54208 normal.