Park Falls, WI 54524 Frost Dates
54524, near Park Falls, WI: the frost window
Around 05/15 is the usual last spring frost, about 260 days away. Fall's first freeze usually shows up around 09/28, roughly 134 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Park Falls in Zone 4a (-30 to -25°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
Park Falls's growing season runs out in roughly 4 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Park Falls's last frost
05/15 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/30 and only about 1 year in 10 sees frost after that.
Park Falls against the rest of the dataset
About 134 days separate Park Falls's last and first frost, putting it 37,971 of 40,283 ZIP codes nationally. Within WI, it ranks 782 of 860.
Learn more
Two guides worth reading on 54524: zone vs. frost date, on why Zone 4a and Park Falls's frost date answer different questions, and the frost range, on how to read the range around Park Falls's dates instead of trusting one.