It may be coincidence that it gets colder when the sun goes down; however, I doubt it. But, just because science or math can predict something doesn't mean it happens all the time. If I provide the following: 2 4 6 8 and ask what comes next, most people would say 10. They might be right. The guy that answers 10 plus or minus X (with X being unknown) might also be right. Science can't prove or disprove angels because science has never studied angels. Comes down to a matter of belief. And I believe there are angels. I live in a simple universe.