As expected, the temperature of the areas closer to the equator is much higher than those that are closer to the poles.
The regression analysis tends to sque more to the lower right because there are more cities in the northern part of the world than in the southern hemisphere.
This pattern is repeated for all three areas.
One interesting fact is that despite using June weather data, the max temperature in the Northern Hemisphere, which is in early summer,
is as low as those in the Southern Hemisphere that is experiencing early winter.
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