More spectacular is a big deviation in Arctic sea ice after mid-October, in both JAXA and NSIDC. Here is the recent part of the radial plot, where black is 2016, and colors are other recent years:
|JAXA Arctic Sea Ice October 2016||NSIDC|
It is such a remarkable change that a fault might be suspected, but it is the same from both sources. The plot shows a period of about a month, centred on present. The number values are here. Arctic temperatures have been warm.