017 SXUS99 KFSD 191911 RERSUX RECORD EVENT REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 211 PM CDT SUN OCT 19 2003 ...RECORD HIGH TEMPERATURE TIED AT SIOUX CITY IOWA... AT 210 PM CDT THE TEMPERATURE AT SIOUX GATEWAY AIRPORT IN SIOUX CITY HIT 86 DEGREES. THIS EQUALS THE RECORD FOR THE DATE SET IN 1958. $$