I was scanning a color map of departures from normal, that dated back to 1900. What was very apparent is from 1900 to 2000, there were a fair share of equal below and above normal departures from month to month. The last 20 years, the above normals have well outpaced the below normal months and the departure from normal are much greater on the warm side. Kinda scary when you look at it that way. .