White Christmas
Will Onawa, IA have a white Christmas?
Onawa, Iowa had snow on the ground on Christmas morning in 14 of the 20 Christmases measured from 1996 to 2025. The last white Christmas there was in 2017. Most years.
Measured at Castana Exp Farm, 14 miles east of Onawa. 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 Onawa starts on this page on December 18.