215 SXUS73 KFSD 310638 RERFSD RECORD EVENT REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 137 AM CDT WED MAR 31 2010 ...RECORD DAILY HIGH MINIMUM SET AT SIOUX FALLS SD... THE LOW TEMPERATURE ON TUESDAY AT SIOUX FALLS JOE FOSS FIELD WAS ONLY 51 DEGREES. THIS IS THE WARMEST LOW TEMPERATURE EVER RECORDED FOR THE 30TH OF MARCH. THE PREVIOUS RECORD WAS 50 DEGREES...SET BACK IN 1943. $$