FrostDateCheck

Minong, WI 54888 Frost Dates

Minong, WI: when does the frost end?

Zone 4a

Typically, the last spring freeze lands around 05/14, roughly 259 days out. Fall's first freeze usually shows up around 09/28, roughly 135 days after the last spring frost.

Minong 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

With roughly 4 weeks until Minong's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.

The actual range around Minong's last frost

05/14 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/30 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/29 and only about 1 year in 10 sees frost after that.

Minong against the rest of the dataset

Minong's growing season runs about 135 days, ranking 37,907 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 780 of 860.

Learn more

Before leaning on 54888's figures: the frost range explains how to read the range around Minong's dates instead of trusting one, while local microclimates explains what one yard in Minong can differ from the 54888 normal.