Stockholm, WI 54769 Frost Dates
Stockholm, 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 10/10, roughly 162 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Stockholm 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 6 weeks until Stockholm's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Stockholm's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/17 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/15 and only about 1 year in 10 sees frost after that.
Stockholm against the rest of the dataset
About 162 days separate Stockholm's last and first frost, putting it 31,900 of 40,283 ZIP codes nationally. Within WI, it ranks 288 of 860.
Learn more
Before leaning on 54769's figures: zone vs. frost date explains why Zone 4b and Stockholm's frost date answer different questions, while the frost range explains how to read the range around Stockholm's dates instead of trusting one.