If you want to boost your odds of a white Christmas this year, head north on Interstate 93 from Manchester, N.H.; proceed east on Route 112 to Conway, N.H.; and then north on Route 16 to Pinkham Notch, N.H.

Pinkham Notch has a 95 percent chance of white Christmas -- that's an inch or more of snow on the ground for Dec. 25, according to the National Oceanic and Atmospheric Administration (NOAA) Northeast Regional Climate Center at Cornell.

Last Christmas, Pinkham Notch enjoyed a 3-inch snowfall and 23 inches of total snow on the ground that day.

The regional climate center assembles the probabilities based on a 50-year average, using data from 1959 to 2008.

Other cold and snowy hot spots in the Northeast, with their odds of enjoying snow cover Christmas morning include:

The least likely places in the Northeast to have a white Christmas: New York City, Baltimore and Philadelphia each have only a 12 percent chance, while Washington, D.C., has a 13 percent chance and Boston a 20 percent chance.

A chart of selected Northeastern cities and their odds of snow Christmas morning, among other data is at http://pressoffice.cornell.edu/_cs_upload/cms/releases/36502_2.pdf.