Try Ronald Reagan.
January 20th fell on Sunday, so Reagan was privately sworn in that day at the White House; public Inauguration on January 21st took place in the Capitol Rotunda, due to freezing weather
Thanks for that information. And recalling the weather of the day it was reasonable.
Now the question, why was it necessary with Obozo. Remember he was administered a 2nd Oath the last time too. Accident? Nope nothing with Obozo is by accident, but by design.