January
the month when a president is sworn into the office is january!
Presidential elections are held in the US in the month of November, every 4 years.
The first time he became president, it was because Kennedy was killed and he had to assume office immediately. He was sworn in by a local justice of the peace while sitting in the presidential airplane. For his second term he had a standard inauguration and was sworn in by the chief justice.
William Henry harrisson died a month after being sworn into office at the capitol
A presidential inauguration is a ceremony in Washington D.C. at which a president- elect is sworn in.
In the US, a Presidential election occurs during a general election on the second Tuesday in November.
Lyndon Johnson was sworn in office on Air Force One, but I do not know of any presidents sworn in out of the U.S.
Richard M. Nixon was sworn in as the 37th US President on 20 March 1969.
1963 was the year that Lyndon Johnson was sworn in while sitting in the presidential plane on a runway in Dallas, TX after the death of President Kennedy.
George Washington was sworn in for the first time in New York City,
Lyndon Johnson took the Presidential Oath of Office aboard the presidential airplane waiting to carry the body of John F. Kennedy back to Washington, DC from Dallas, Texas. He was sworn before the plane took off by a local JP who happened to be female. This also makes him the first president to be sworn in by a woman.
Barack Obama was sworn in as the 44th US President.