[One small note: I didn't mean to imply you were doubting my accuracy. In general, I encourage anyone who does bring skepticism to the question "Does Windlord-Sun extract and graph NOAA's data properly?" to examine it themselves. So far, I have confirmation from one other data professional that...
GHCN contains direct measurements globally. Considering the vastness of the non-USA area, and the relatively low number of 120+ year stations scattered around, I find that sticking to the Gold Standard for measurement (USHCN) to be more powerful -- highly concentrated and high confidence...
"Average Global Temperature" is irrelevant, if your goal is to answer the question "Is there any abnormal warming?"
What counts is raw measurement, at many stations, for a long duration (120+ years) to see if any given station shows abnormal warming. By inspecting the individual sine wave curve...