South Wayne, WI 53587 Frost Dates
Frost dates for South Wayne, WI, ZIP 53587
Typically, the last spring freeze lands around 04/27, roughly 242 days out. The first fall frost typically arrives around 10/14, about 170 frost-free days later.
South Wayne sits in USDA Zone 5a (-20 to -15°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
Zone 5a around South Wayne has about 7 weeks left before the first fall frost — that's the usual window to get a cold frame up if you want to keep harvesting past it.
The actual range around South Wayne's last frost
04/27 is the middle of 30 years of NOAA records, not a promise. Plant by 04/12 and you're betting against frost in roughly 9 years out of 10. 05/12 is the safer bet, historically only a 1-in-10 chance of frost that late.
How South Wayne compares
South Wayne's growing season runs about 170 days, ranking 29,198 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 129 of 860.
Learn more
the frost range explains how to read the range around South Wayne's dates instead of trusting one, and local microclimates explains what one yard in South Wayne can differ from the 53587 normal.