Some like it hot; What's up with them?

I wonder how hot it is on Mercury in the summertime. Mercury, as you know, is the closest planet to the sun and therefore the hottest. This South, as you know, comes right between it and Venus giving us the number two status in the solar system for heat production. Or so it seems, in the summertime. I remember the summers of my childhood 40 years ago. The heat was different in the 1960s--it was ev…