Tomahawk, WI 54532 Frost Dates
54532, near Tomahawk, WI: the frost window
Around 05/11 is the usual last spring frost, about 256 days away. Fall's first freeze usually shows up around 09/30, roughly 139 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Tomahawk 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
Tomahawk's growing season runs out in roughly 5 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 Tomahawk's last frost
05/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/29 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/27 and only about 1 year in 10 sees frost after that.
Tomahawk against the rest of the dataset
About 139 days separate Tomahawk's last and first frost, putting it 37,228 of 40,283 ZIP codes nationally. Within WI, it ranks 730 of 860.
Learn more
Two guides worth reading on 54532: the frost range, on how to read the range around Tomahawk's dates instead of trusting one, and local microclimates, on what one yard in Tomahawk can differ from the 54532 normal.