Tomahawk, WI 54531 Frost Dates
When can you plant in Tomahawk, WI?
The last spring frost here typically falls around 05/13, about 258 days from today. The first fall frost typically arrives around 10/03, about 141 frost-free days later.
Tomahawk sits in USDA Zone 4a (-30 to -25°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.
What to do before the first frost
About 5 weeks of growing season left in Tomahawk before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
How much risk comes with planting early here
05/13 is the middle of 30 years of NOAA records, not a promise. Plant by 04/29 and you're betting against frost in roughly 9 years out of 10. 05/27 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Tomahawk compares
About 141 days separate Tomahawk's last and first frost, putting it 36,908 of 40,283 ZIP codes nationally. Within WI, it ranks 704 of 860.
Learn more
the frost range covers how to read the range around Tomahawk's dates instead of trusting one. local microclimates covers what one yard in Tomahawk can differ from the 54531 normal.