231 SXUS99 KFSD 191139 RERSUX RECORD EVENT REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 640 AM CDT THU AUG 19 2004 ...RECORD LOW TEMPERATURE SET AT SIOUX CITY... AT 630 AM CDT...THE TEMPERATURE DROPPED TO 44 DEGREES AT THE SIOUX CITY AIRPORT. THIS BREAKS THE OLD RECORD FOR TODAY OF 46 DEGREES SET IN 1950 AND 1967. $$ RSR