An interesting report I heard last night, which describes the probable cause of the cold weather. Despite what I had been thinking, it's not related to climate change--it's the Arctic oscillation. The Arctic is up by some 10-15 degrees this winter.

http://www.npr.org/templates/story/story.php?storyId=122649916

BTW, discarding anomalous data points and drawing graphs is standard practice in just about ever science out there.

I am the Doctor, and THIS... is my SPOON!