Hayward, WI 54843 Frost Dates
When can you plant in Hayward, WI?
The last spring frost here typically falls around 05/22, about 267 days from today. The first fall frost typically arrives around 09/23, about 124 frost-free days later.
The USDA Plant Hardiness Zone Map puts Hayward in Zone 4a (-30 to -25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
What to do before the first frost
About 4 weeks of growing season left in Hayward 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
05/22 is the middle of 30 years of NOAA records, not a promise. Plant by 05/02 and you're betting against frost in roughly 9 years out of 10. 06/06 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Hayward compares
About 124 days separate Hayward's last and first frost, putting it 38,835 of 40,283 ZIP codes nationally. Within WI, it ranks 824 of 860.
Learn more
the frost range covers how to read the range around Hayward's dates instead of trusting one. local microclimates covers what one yard in Hayward can differ from the 54843 normal.