Des Moines Recorded Heavy Rainfall in September
Des Moines saw its second-wettest September on record last month, causing significant localized flooding at Drake University.
Updated on Oct. 3, 2026 in Current Conditions
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Des Moines experienced 14.50 inches of rain in September 2026, marking the citys second-wettest September since 1926. The extreme weather significantly impacted the Drake University campus, necessitating an intensive cleanup effort by facility staff.
Why it matters
The rainfall far exceeded the monthly average of 3.14 inches, overwhelming drainage systems that had been clogged by debris following a dry summer. This resulted in water tables rising above capacity and flooding several campus facilities.
Des Moines received 14.50 inches of rain in September 2026, making it the second-wettest September since 1926. This total surpassed the first nine days of the month, which saw 7.39 inches of precipitation.
The players
Drake University
This private university in Des Moines faced extensive facility flooding due to the record-breaking September precipitation.
The details
Drake University deployed 80 to 90 facility workers to clear debris and operate industrial fans and humidifiers throughout affected buildings. Flooding was particularly severe at Stalnaker Residence Hall, where blocked drains near Hubbell Dining Hall forced water into campus structures.
Timeline
September 1914: The city set its all-time September rainfall record of 14.81 inches.
September 1-9, 2026: Des Moines recorded 7.39 inches of rain during this nine-day window.
September 2026: The month concluded with a total of 14.50 inches of rain.
October 1, 2026: Rainfall statistics were finalized for the preceding month.
Seasonal Patterns
The 2026 precipitation levels represent the second-wettest September since 1926, closely approaching the all-time record set in 1914. This event highlights how modern weather patterns can mirror or challenge historical extremes in the Des Moines region.
Residents should ensure that home gutters and storm drains are kept clear of seasonal debris to prevent similar flooding issues during heavy rainfall. Monitoring local drainage reports is essential for homeowners in low-lying areas to protect property from water damage.
The takeaway
The extreme rainfall volume serves as a reminder to maintain residential and institutional drainage infrastructure before the onset of wet seasons. Proactive clearing of debris can mitigate the impact of heavy storms on local building foundations and interior spaces.
Further reading
For more information on local weather trends, visit the Current Conditions page.
Source note: This article includes information reported by The Times-Delphic.
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