December 1923 was a very warm month in the Eastern US and Canada, with temperatures averaging as much as 12F above the mean.
Mt Vernon, Indiana had 23 days over 50F and five days over 65F, including 67F on New Year’s Eve.
Indiana did not have any cold weather during November and December, 1923.
What were temperatures and weather like in January, 1924?
New Years Day 1924 was very cold, and the cold remained for a long time.