Minong, WI 54859 Frost Dates
54859, near Minong, WI: the frost window
Typically, the last spring freeze lands around 05/22, roughly 267 days out. Fall's first freeze usually shows up around 09/26, roughly 126 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Minong in Zone 4a (-30 to -25°F average annual minimum); frost dates are NOAA's 1991-2020 station normal, not this year's forecast.
Stretching the season past the first frost
Minong's growing season runs out in roughly 4 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 Minong's last frost
05/22 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 05/06 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 06/04 and only about 1 year in 10 sees frost after that.
Minong against the rest of the dataset
Minong's growing season runs about 126 days, ranking 38,706 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 812 of 860.
Learn more
Two guides worth reading on 54859: the frost range, on how to read the range around Minong's dates instead of trusting one, and local microclimates, on what one yard in Minong can differ from the 54859 normal.