000 SXUS75 KRIW 280028 RERRIW RECORD EVENT REPORT NATIONAL WEATHER SERVICE RIVERTON WY 0527 PM MST MON NOV 27 2023 ...RECORD LOW TEMPERATURE SET AT RIVERTON WY... A RECORD LOW TEMPERATURE OF -8 WAS SET AT RIVERTON WY TODAY. THIS BREAKS THE OLD RECORD OF -5 SET IN 2015. $$