Europe is a lot warmer than it should be because of the gulf stream that brings warm water from the equator. If you look at the same latitute in north america/Asia the climate will be a lot cooler there.
South america on the other hand is cooler than it should be simply by latitude because of the humbold current and the Antarctic ocean.
So you are comparing the warmest point with the coldest one at the same latitude (mirrored on the southern hemisphere)
Interesting, I’ll look into this.