Stoddard, WI 54658 Frost Dates
54658, near Stoddard, WI: the frost window
Typically, the last spring freeze lands around 04/22, roughly 237 days out. Fall's first freeze usually shows up around 10/17, roughly 178 days after the last spring frost.
Stoddard 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.
Stretching the season past the first frost
Stoddard's growing season runs out in roughly 7 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
How much risk comes with planting early here
04/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/05 and only about 1 year in 10 sees frost after that.
Stoddard against the rest of the dataset
Stoddard's growing season runs about 178 days, ranking 25,831 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 54 of 860.
Learn more
Two guides worth reading on 54658: local microclimates, on what one yard in Stoddard can differ from the 54658 normal, and zone vs. frost date, on why Zone 5a and Stoddard's frost date answer different questions.