The graphs you presented do seem to indicate a general rising trend in arctic temperatures over the last century (I think you guys call it a "hockey stick", right), superimposed on top of the wild normal year-to-year variation.

No, Hockey Stick refers a temperature graph made from proxy temperatures [e.g. tree rings] with global temperature readings comprised of weather station measurement spliced on the recent part of graph. It's shows a smoothed flat temperate with steep rise in 20th Century [hence term, Hockey Stick].
The first graph is smoothed to show a trend line, but merely smoothing a graph doesn't make it a hockey stick. Though having a computer program which processes proxy type data [or a graph composed of random white noise] that creates a flat smoothed graph which rises at the end, is also another "definition" of something which has been hockey sticked.