SXUS73 KFSD 210118 RERFSD RECORD EVENT REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 818 PM CDT THU SEP 20 2018 ...RECORD DAILY MAXIMUM RAINFALL SET AT SIOUX FALLS SD... A RECORD RAINFALL OF 3.07 INCHES WAS SET AT SIOUX FALLS SD TODAY. THIS BREAKS THE OLD RECORD OF 2.91 SET ON THIS DATE IN 1950. $$ ADAMS