Ridgeland, WI 54763 Frost Dates
Ridgeland, WI: when does the frost end?
Typically, the last spring freeze lands around 05/10, roughly 255 days out. Fall's first freeze usually shows up around 09/29, roughly 140 days after the last spring frost.
Ridgeland sits in USDA Zone 4b (-25 to -20°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 5 weeks until Ridgeland's first fall frost, a row cover or cold frame is what stretches the last few weeks of harvest here.
How much risk comes with planting early here
05/10 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/28 carries real risk, frost has hit that late in about 9 of 10 years here. Wait until 05/26 and only about 1 year in 10 sees frost after that.
Ridgeland against the rest of the dataset
Ridgeland's growing season runs about 140 days, ranking 37,158 of 40,283 US ZIP codes measured here, longest to shortest. Within WI, it ranks 721 of 860.
Learn more
Before leaning on 54763's figures: local microclimates explains what one yard in Ridgeland can differ from the 54763 normal, while zone vs. frost date explains why Zone 4b and Ridgeland's frost date answer different questions.