Eagle River, WI 54562 Frost Dates
Eagle River, WI: when does the frost end?
The last spring frost here typically falls around 05/25, about 270 days from today. Fall's first freeze usually shows up around 09/24, roughly 121 days after the last spring frost.
Eagle River 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 4 weeks until Eagle River's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
The actual range around Eagle River's last frost
05/25 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/10 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/06 and only about 1 year in 10 sees frost after that.
Eagle River against the rest of the dataset
At roughly 121 frost-free days, Eagle River places 39,015 of 40,283 ZIP codes in this dataset. Within WI, it ranks 844 of 860.
Learn more
Before leaning on 54562's figures: zone vs. frost date explains why Zone 4b and Eagle River's frost date answer different questions, while the frost range explains how to read the range around Eagle River's dates instead of trusting one.