White Christmas
Will Union, IL have a white Christmas?
Union, Illinois had snow on the ground on Christmas morning in 9 of the 25 Christmases measured from 1996 to 2025. The last white Christmas there was in 2017. A coin flip.
Measured at Crystal Lake 4nw, 8 miles east of Union. 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 Union starts on this page on December 18.