December 22-23, 2004 -- 18.0
December 14-15, 2000 -- 13.0
January 25-26, 2026 -- 12.0
January 27-28, 2009 -- 11.0
February 23-24, 2003 -- 10.3
(Measurements by staff at the IU Physical Plant; you may have had slightly more or less at your location)
Data from openweathermap.org Last report Wed 28 Jan at 6:20 AM