- All-time lowest temperature: -37° F (Shelbyville 1 E on Jan. 19, 1994) - All-time highest 24-hour precipitation: 10.48 inches (Louisville WFO on March 1, 1997) - All-time highest 24-hour snowfall: 26 inches (Simers on March 3, 1942) The flood of 1997 in Louisville resulted in...