SXUS73 KDMX 100632 RERDMX RECORD EVENT REPORT NATIONAL WEATHER SERVICE DES MOINES IA 0131 AM CDT SUN APR 10 2016 ...RECORD LOW TEMPERATURE TIED AT OTTUMWA IA... A RECORD LOW TEMPERATURE OF 18 DEGREES WAS TIED AT OTTUMWA IA YESTERDAY. THIS TIES THE OLD RECORD OF 18 SET IN 1997. $$