SXUS73 KDMX 220734 RERDMX RECORD EVENT REPORT NATIONAL WEATHER SERVICE DES MOINES IA 234 AM CDT SUN JUN 22 2025 ...RECORD WARM LOW TEMPERATURE SET AT OTTUMWA FOR SATURDAY JUNE 21... A DAILY RECORD WARM LOW TEMPERATURE OF 77 DEGREES WAS SET AT OTTUMWA, IOWA FOR SATURDAY JUNE 21. THIS BREAKS THE PREVIOUS RECORD OF 76 DEGREES WHICH OCCURRED IN 1988. && WEATHER RECORDS FOR THE OTTUMWA AREA HAVE BEEN TAKEN FROM TWO GENERAL LOCATIONS. INITIAL RECORDS WERE STARTED ON FEBRUARY 1, 1923 NORTH OF DOWNTOWN AND REMAINED THERE UNTIL JANUARY 31, 1948. AT THAT POINT, OBSERVATIONS WERE MOVED TO THE OTTUMWA AIRPORT ON FEBRUARY 1, 1948 WHERE THEY REMAIN UNTIL PRESENT. $$