Prairie Farm, WI 54762 Frost Dates
54762, near Prairie Farm, WI: the frost window
Typically, the last spring freeze lands around 05/10, roughly 255 days out. Fall's first freeze usually shows up around 09/29, roughly 140 days after the last spring frost.
Prairie Farm sits in USDA Zone 4b (-25 to -20°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
Prairie Farm's growing season runs out in roughly 5 weeks — a cold frame or greenhouse kit is the usual way to keep cool-weather crops going past the first frost.
The actual range around Prairie Farm's last frost
05/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/26 and only about 1 year in 10 sees frost after that.
Prairie Farm against the rest of the dataset
About 140 days separate Prairie Farm's last and first frost, putting it 37,131 of 40,283 ZIP codes nationally. Within WI, it ranks 717 of 860.
Learn more
Two guides worth reading on 54762: the frost range, on how to read the range around Prairie Farm's dates instead of trusting one, and local microclimates, on what one yard in Prairie Farm can differ from the 54762 normal.