White Christmas
Will Lower Allen, PA have a white Christmas?
Lower Allen, Pennsylvania had snow on the ground on Christmas morning in 3 of the 23 Christmases measured from 1996 to 2025. The last white Christmas there was in 2012. Rarely.
Measured at Harrisburg 1 Ne, 4 miles north of Lower Allen. 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 Lower Allen starts on this page on December 18.