And in Fact, Climate Change Maybe behind the Cold Weather

The Scientific American goes further and says that the "Polar Vortex" incursion is usually associated with warmer temperatures in the Arctic during the summer and less ice in the ice cap.. 

 "Although the extent of summer sea ice in the Arctic varies year to year, overall it has been disappearing to a notable degree since 2007 and it is forecast to continue to vanish even further. That could mean more trouble for the polar vortex, and more frigid outbreaks—a seeming contradiction to “global warming,” perhaps, but not for “global weirding,” also known as climate change."