Aidan T Murphy

Dreaming of a white Christmas? Well, here's the facts

• The statistical likelihood of snow at Dublin Airport, for instance, is once every six years, as snow fell on Christmas day 12 times in the last 71 years, according to Aidan Murphy, of Met Eireann, who has studied snowfall in Ireland.Aidan Murphy explains that, in winter, snow often occurs when two different air masses collide, the cold continental air from the north or east meets the relatively mild moist sea air from the south or west.
• Date: Dec 16, 2014
• Category: U.S.
• Source: Google