000 SXUS75 KRIW 260747 RERRIW RECORD EVENT REPORT NATIONAL WEATHER SERVICE RIVERTON WY 145 AM MDT THU APR 26 2018 ...RECORD LOW TEMPERATURE SET AT RIVERTON WY APRIL 25TH... A RECORD LOW TEMPERATURE OF 22 DEGREES WAS SET AT RIVERTON WY ON APRIL 25TH. THIS BREAKS THE OLD RECORD OF 23 SET IN 2002. RECORDS FOR THIS SITE HAVE BEEN KEPT SINCE 1998. THE RECORD LOW FOR APRIL 25TH AT THE COOPERATIVE SITE IN RIVERTON WAS 15 DEGREES SET IN 1907. $$