"Are you all hot air or do you have any numbers to back up your subjective assertion that "The last few years have been quite warm Winters."?

Yeah... right here
This is the records from Dulles airport since 1963. (25 miles to the southwest of me)If you go to the lower right corner, you'll see the 4 seasons listed, and above them the average temps. If you look up the columns, you'll see several degrees more per year on average, with the usual fluctuations.

2000-2004 were colder than 2005-2009, and if you go back to 1977-1999, you'll see overall RISE in average of several degrees.

You want records since 1871 at what is now Reagan National?

DCA

same basic general rise in average annual temps.

I have lived in the area since 1977, so I guess MY "hot air" must be to blame for a lot of it, huh?

Your problem, Sawzaw, is that you don't really want to find a pattern that disagrees with you.