000 SXUS75 KRIW 290031 RERRIW RECORD EVENT REPORT NATIONAL WEATHER SERVICE RIVERTON WY 0529 PM MST TUE NOV 28 2023 ...RECORD LOW TEMPERATURE SET AT RIVERTON WY... A RECORD LOW TEMPERATURE OF -9 WAS SET AT RIVERTON WY TODAY, TUESDAY NOVEMBER 28TH, 2023. THIS BREAKS THE OLD RECORD OF -3 SET ON THIS DATE IN 2015. $$