SXUS73 KFSD 190631 RERFSD RECORD EVENT REPORT NATIONAL WEATHER SERVICE SIOUX FALLS SD 1226 AM CST SAT JAN 19 2019 ...RECORD DAILY MAXIMUM SNOWFALL SET AT SIOUX FALLS... A RECORD SNOWFALL OF 4.6 INCHES WAS SET AT SIOUX FALLS ON FRIDAY JANUARY 18TH. THIS BREAKS THE OLD RECORD OF 3.5 INCHES SET IN 1922. $$