SXUS73 KFSD 230649 RERSUX RECORD EVENT REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 149 AM CDT SAT SEP 23 2017 ...RECORD DAILY HIGH MINIMUM TEMPERATURE SET AT SIOUX CITY IA... A RECORD DAILY HIGH MINIMUM TEMPERATURE WAS SET IN SIOUX CITY IOWA YESTERDAY. THE MINIMUM TEMPERATURE WAS 74 DEGREES, BREAKING THE PREVIOUS RECORD OF 70 SET IN BOTH 1920 AND 1937. $$ FERGUSON