110; Chester, July 18, 1887, and Santuck, July 1, 2012
Numerous xmACIS records have questionable and incorrect record high temperatures in July (112 & 111 degrees). Therefore, after comparison with NCDC, the high temperature of 110 on July 18, 1887 at Chester and July 1, 2012 at Santuck hold the record July high in South Carolina. In July 1887, South Carolina experienced intense and unprecedented heat, especially on and around the 18th. There were numerous unusual and deadly sunstrokes in Charleston and Columbia due to this heat. In the end of June and beginning of July 2012, the South Carolina Upstate and Midlands experienced a record breaking desert-like climate. Average temperatures ranged from 1-5 degrees above normal in July.