Greenwood, WI 54493 Frost Dates
54493, near Greenwood, 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 10/01, roughly 146 days after the last spring frost.
The USDA Plant Hardiness Zone Map puts Greenwood in Zone 4b (-25 to -20°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
Greenwood'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 Greenwood's last frost
05/07 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/23 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/20 and only about 1 year in 10 sees frost after that.
Greenwood against the rest of the dataset
Greenwood's growing season runs about 146 days, ranking 36,068 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 642 of 860.
Learn more
Two guides worth reading on 54493: the frost range, on how to read the range around Greenwood's dates instead of trusting one, and local microclimates, on what one yard in Greenwood can differ from the 54493 normal.