Tony, WI 54563 Frost Dates
54563, near Tony, WI: the frost window
Typically, the last spring freeze lands around 05/07, roughly 252 days out. Fall's first freeze usually shows up around 10/03, roughly 147 days after the last spring frost.
Tony sits in USDA Zone 4a (-30 to -25°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
Tony'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 Tony's last frost
05/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/25 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/22 and only about 1 year in 10 sees frost after that.
Tony against the rest of the dataset
Tony's growing season runs about 147 days, ranking 35,994 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 632 of 860.
Learn more
Two guides worth reading on 54563: the frost range, on how to read the range around Tony's dates instead of trusting one, and local microclimates, on what one yard in Tony can differ from the 54563 normal.