Why can't we hold elections in June and inaugurations in September?
I guess tradition. The old inauguration date used to be on my birthday of March 4th. It was moved to January sometime early in the 20th century I think.
"Why can't we hold elections in June and inaugurations in September?"
Actually we'd do better to hold elections around April 16, with inauguration mid-June. Voters should vote right AFTER they have filed their income taxes. Also April-June is spectacular in DC.