A North American continental weather-shift?

Those climate-change sceptics pointing at the record falls of snow in New England as proof that 90% of the world's scientists are engaged in a gigantic hoax should look at the other side of the continent.
There has been a warming trend in the western States and provinces of Canada (the temperature in Alaska did not dip below zero Fahrenheit for the whole of 2014) and a reduction in precipitation. Particularly worrying is the paucity of snow in the mountains. The thirsty state of California depends on the resulting melt-water.