White Christmases are growing less common in southern Canada.

At this time of year, many folks dream of a white Christmas. But as the climate warms, that dream may come true less often … even in Canada, one of the snowiest countries in the world.

It is becoming increasingly difficult to enjoy a white Christmas in Southern Canada.

There, a white Christmas is defined as having at least two centimeters of snow on the ground on Christmas morning.

Phillips: “Years ago, you didn’t even talk about whether you’re going to have a white Christmas because it was a sure thing. Now, it’s not so sure.”

David Phillips is senior climatologist with Environment and Climate Change Canada. He studied 60 years of data and found that in many parts of Canada, especially southern cities such as Montreal, the chance of a white Christmas is declining.

Read Diana Madson’s Yale Climate Connections story - “White Christmases are growing less common in southern Canada.”