While it certainly is warm, this is not unprecedented. February of 1954 is the warmest on record, followed by 1984 and 1999 (and now perhaps 2017). Our warm weather is not a global event, as there are many areas around the globe that have been cold and snowy. Chalk this weather up to Pacific warmth, the westerly quasi-biennial oscillation, and a host of other weather phenomena that have conspired to hose us in the east this year. With another El Niño coming, who knows what to expect next.
This isn't denial or skepticism, simply a more plausible means of explaining this up and down winter.