Anthony Watts posts that Southern Hemisphere Sea Ice Extent Anomaly for November was a record high for the NSIDC data set. He also mentions that this year saw record highs in Southern Hemisphere ice extent for June, July, and August as well.
Watts also complains that “Oddly, they have a plot for extent, and a data file for area, but no plot for area or data for extent. Seems backwards, doesn’t it? Maybe I’ve missed something and they are in some other FTP folder?” This makes me suspect that he hasn’t looked at the actual data files, because those files with “area” in the name contain data for both area and extent.