014 SXUS73 KFSD 191136 RERSUX RECORD EVENT REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 636 AM CDT SUN JUL 19 2009 ...RECORD LOW TEMPERATURE SET FOR SECOND STRAIGHT DAY AT SIOUX CITY IA... AT 612 AM CDT...THE TEMPERATURE AT SIOUX GATEWAY AIRPORT DROPPED TO 49 DEGREES. THIS SETS A NEW LOW TEMPERATURE EXTREME FOR THE DATE... BREAKING THE PREVIOUS RECORD OF 50 DEGREES SET IN 1947. $$ CHAPMAN