SXUS73 KDMX 310644 RERDSM RECORD EVENT REPORT NATIONAL WEATHER SERVICE DES MOINES IA 144 AM CDT THU OCT 31 2024 ...RECORD HIGH RAINFALL SET AT DES MOINES FOR WEDNESDAY OCTOBER 30... A DAILY RECORD HIGH RAINFALL OF 1.76 INCHES WAS SET AT DES MOINES, IOWA FOR WEDNESDAY OCTOBER 30. THIS BREAKS THE PREVIOUS RECORD OF 1.72 INCHES WHICH OCCURRED IN 1974. && WEATHER RECORDS FOR THE DES MOINES AREA HAVE BEEN TAKEN FROM TWO GENERAL LOCATIONS. INITIAL RECORDS WERE STARTED AT THE POLK COUNTY COURTHOUSE. ON SEPTEMBER 1, 1939, OBSERVATIONS MOVED TO THE DES MOINES INTERNATIONAL AIRPORT AND HAVE REMAINED THERE UNTIL PRESENT. TEMPERATURE AND PRECIPITATION RECORDS DATE BACK TO AUGUST 1, 1878 WITH SNOWFALL DATING BACK TO DECEMBER 1, 1884. $$