SXUS73 KDMX 300637 RERDMX RECORD EVENT REPORT NATIONAL WEATHER SERVICE DES MOINES IA 137 AM CDT SAT SEP 30 2023 ...RECORD HIGH TEMPERATURE TIED AT MASON CITY FOR FRIDAY SEPTEMBER 29... A DAILY RECORD HIGH TEMPERATURE OF 88 DEGREES WAS TIED AT MASON CITY, IOWA FOR FRIDAY SEPTEMBER 29. THIS TIES THE PREVIOUS RECORD OF 88 DEGREES WHICH LAST OCCURRED IN 1922. && WEATHER RECORDS FOR THE MASON CITY AREA HAVE BEEN TAKEN FROM TWO GENERAL LOCATIONS. INITIAL RECORDS WERE STARTED ON FEBRUARY 1, 1903 IN DOWNTOWN MASON CITY. THE REPORTING LOCATION REMAINED NEAR DOWNTOWN UNTIL AUGUST 1, 1918 WHEN THE SUGAR MANUFACTURING FACILITY NORTH OF TOWN TOOK OVER OBSERVATIONS. REPORTS CONTINUED AT THIS SITE UNTIL JANUARY 1, 1948 WHEN THE CURRENT OBSERVATION SITE AT THE MASON CITY AIRPORT BEGAN REPORTING. TEMPERATURE, PRECIPITATION AND SNOWFALL RECORDS ALL BEGAN ON FEBRUARY 1, 1903. $$