Hazel Green, WI 53811 Frost Dates
When can you plant in Hazel Green, WI?
Typically, the last spring freeze lands around 04/19, roughly 234 days out. The first fall frost typically arrives around 10/21, about 184 frost-free days later.
Zone 5a (-20 to -15°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Hazel Green, not a forecast for this year.
What to do before the first frost
About 8 weeks of growing season left in Hazel Green 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
04/19 is the middle of 30 years of NOAA records, not a promise. Plant by 04/04 and you're betting against frost in roughly 9 years out of 10. 05/04 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Hazel Green compares
At roughly 184 frost-free days, Hazel Green places 23,586 of 40,283 ZIP codes in this dataset. Within WI, it ranks 20 of 860.
Learn more
the frost range covers how to read the range around Hazel Green's dates instead of trusting one. local microclimates covers what one yard in Hazel Green can differ from the 53811 normal.