OT: Really dumb question on atmospheric conditions

[Robert Soames Wetmore]

It was about 9 degrees Fahrenheit this morning and very clear out. It seems it is usually or often clear when very cold. Dumb question but is this some kind of rule: is it always/usually clearer when cold? And why? Is it because of the cold, or some other related factor which may be present when it is not cold or may sometimes not be present when it is cold)? Or is it all in my imagination? Thanks and forgive my ignorance...

Rob





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