000 SXUS73 KUNR 140838 RERRAP RECORD EVENT REPORT NATIONAL WEATHER SERVICE RAPID CITY SD 0136 AM MST SUN JAN 14 2024 ...RECORD LOW TEMPERATURE SET AT RAPID CITY AIRPORT SD... A RECORD LOW TEMPERATURE OF -21 WAS SET AT RAPID CITY AIRPORT SD YESTERDAY. THIS BREAKS THE OLD RECORD OF -16 SET IN 1972. $$