Here is the GISS plot:
And below is the plot that I showed here:
I've tried hard to match the colors and levels, and I don't think they are the major source of the differences, although my corresponding colors, theoretically an exact match, do seem fainter in the PNG rendition. I think part is the smoothing. The actual patterns are very similar.
Update. MP has commented that NOAA/NCDC also has a plot out. below is the graph that he linked, and below that is my graph, in similar colors (supplied by MP) which I showed in the previous post. It's of special interest because NCDC is using essentially the same global data combination (GHCNv3/ERSST).