FrostDateCheck

Genoa City, WI 53128 Frost Dates

53128, near Genoa City, WI: the frost window

Zone 5b

Around 04/30 is the usual last spring frost, about 245 days away. Fall's first freeze usually shows up around 10/13, roughly 164 days after the last spring frost.

The USDA Plant Hardiness Zone Map puts Genoa City in Zone 5b (-15 to -10°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

Genoa City'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.

The actual range around Genoa City's last frost

04/30 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/16 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/16 and only about 1 year in 10 sees frost after that.

Genoa City against the rest of the dataset

Genoa City's growing season runs about 164 days, ranking 30,959 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 212 of 860.

Learn more

Two guides worth reading on 53128: the frost range, on how to read the range around Genoa City's dates instead of trusting one, and local microclimates, on what one yard in Genoa City can differ from the 53128 normal.