White Christmas
Will Saint Marys, PA have a white Christmas?
Saint Marys, Pennsylvania had snow on the ground on Christmas morning in 17 of the 28 Christmases measured from 1996 to 2025. The last white Christmas there was in 2024. Most years.
Measured at Glen Hazel 2 Ne Dam, 9 miles north of Saint Marys. 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 Saint Marys starts on this page on December 18.