Here in Northern Colorado we had an 18" snowstorm in early February, that was wet like spring snow, and was GONE a week later, just like a spring storm. Daily highs have been in the fifties and sixties for the rest of the month and now into March.
2016 is the winter that wasn't, at least not around here. Even if summer highs don't hit records- and I bet big they will- we'll already see average temperatures skewed higher just because we had no winter cold spells.
Last summer was somehow very comfortable here in spite of the extremes seen elsewhere in the country. I can't expect that to last.