000 SXUS75 KRIW 160733 RRA RERGEY RECORD EVENT REPORT NATIONAL WEATHER SERVICE RIVERTON WY 0128 AM MDT SAT MAR 16 2024 ...RECORD LOW TEMPERATURE SET AT GREYBULL WY... A RECORD LOW TEMPERATURE OF 17 DEGREES WAS SET AT GREYBULL WY YESTERDAY. THIS TIES THE OLD RECORD OF 17 DEGREES SET IN 2019. $$