Rib Lake, WI 54470 Frost Dates
Rib Lake, WI: when does the frost end?
The last spring frost here typically falls around 05/11, about 256 days from today. Fall's first freeze usually shows up around 10/01, roughly 141 days after the last spring frost.
Zone 4a (-30 to -25°F average annual minimum) comes from the USDA Plant Hardiness Zone Map; the frost dates above are the 1991-2020 normal at the nearest reporting NOAA station for Rib Lake, not a forecast for this year.
Stretching the season past the first frost
With roughly 5 weeks until Rib Lake'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
05/11 is the middle of 30 years of NOAA records, not a promise. Getting tender plants in by 04/29 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.
Rib Lake against the rest of the dataset
At roughly 141 frost-free days, Rib Lake places 36,949 of 40,283 ZIP codes in this dataset. Within WI, it ranks 709 of 860.
Learn more
Before leaning on 54470's figures: the frost range explains how to read the range around Rib Lake's dates instead of trusting one, while local microclimates explains what one yard in Rib Lake can differ from the 54470 normal.