Darien, WI 53114 Frost Dates
Darien, WI: when does the frost end?
Around 04/28 is the usual last spring frost, about 243 days away. 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 Darien 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
With roughly 7 weeks until Darien's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Darien's last frost
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.
Darien against the rest of the dataset
About 168 days separate Darien's last and first frost, putting it 29,731 of 40,283 ZIP codes nationally. Within WI, it ranks 147 of 860.
Learn more
Before leaning on 53114's figures: the frost range explains how to read the range around Darien's dates instead of trusting one, while local microclimates explains what one yard in Darien can differ from the 53114 normal.