SXUS73 KDMX 212329 RERDMX RECORD EVENT REPORT NATIONAL WEATHER SERVICE DES MOINES IA 629 PM CDT SAT MAR 21 2026 ...RECORD HIGH TEMPERATURE SET AT MASON CITY FOR SATURDAY MARCH 21... A DAILY RECORD HIGH TEMPERATURE OF 82 DEGREES WAS SET AT MASON CITY, IOWA FOR SATURDAY MARCH 21. THIS BREAKS THE PREVIOUS RECORD OF 81 DEGREES WHICH OCCURRED IN 1938. && 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. $$