Wales, WI 53183 Frost Dates
When can you plant in Wales, WI?
Around 05/01 is the usual last spring frost, about 246 days away. The first fall frost typically arrives around 10/13, about 162 frost-free days later.
Zone 5b (-15 to -10°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 Wales, not a forecast for this year.
What to do before the first frost
About 7 weeks of growing season left in Wales before the first fall frost — a cold frame or row cover can stretch harvest weeks past that date.
The actual range around Wales's last frost
05/01 is the middle of 30 years of NOAA records, not a promise. Plant by 04/18 and you're betting against frost in roughly 9 years out of 10. 05/18 is the safer bet, historically only a 1-in-10 chance of frost that late.
How Wales compares
At roughly 162 frost-free days, Wales places 31,743 of 40,283 ZIP codes in this dataset. Within WI, it ranks 270 of 860.
Learn more
zone vs. frost date covers why Zone 5b and Wales's frost date answer different questions. the frost range covers how to read the range around Wales's dates instead of trusting one.