White Christmas
Will Lake Koshkonong, WI have a white Christmas?
Lake Koshkonong, Wisconsin had snow on the ground on Christmas morning in 15 of the last 30 Christmases (1996 to 2025). The last white Christmas there was in 2022. A coin flip.
Measured at Ft Atkinson Wwtp, 3 miles east of Lake Koshkonong. A white Christmas is an inch or more of snow on the ground at the Christmas morning reading, the line NOAA uses, counted from the station's own daily record.
The forecast for Christmas morning in Lake Koshkonong starts on this page on December 18.