Shorewood, WI 53202 Frost Dates
Frost dates for Shorewood, WI, ZIP 53202
Around 04/26 is the usual last spring frost, about 241 days away. The first fall frost typically arrives around 10/22, about 177 frost-free days later.
The USDA Plant Hardiness Zone Map puts Shorewood in Zone 6a (-10 to -5°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
Zone 6a around Shorewood has about 8 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.
Why 04/26 isn't a guarantee
04/26 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 Shorewood compares
Shorewood's growing season runs about 177 days, ranking 26,054 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 75 of 860.
Learn more
the frost range explains how to read the range around Shorewood's dates instead of trusting one, and local microclimates explains what one yard in Shorewood can differ from the 53202 normal.