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Flood — Polk, IA

Jun 12, 2010

June 2010 temperatures averaged 71.4�� or 1.6�� above normal while precipitation totaled 10.45 inches or 5.81 inches above normal. This ranks as the wettest and 33rd warmest June among 138 years of state records and set the stage for significant river flooding. The only calendar month to bring more rain to Iowa was July 1993 with a statewide average of 10.50 inches while the previous June record was 10.33 inches in 1947. The current preliminary total could vary by about plus or min

Source: NOAA National Weather Service Storm Events Database (event 230798). Narrative written by NWS staff at the time of the event.

Flood Risk Context for Polk, IA

This event is one of many recorded floods in Polk County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.

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Polk, IA · Feb 19, 1997

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Flash Flood$20K damage

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Diurnally driven afternoon storms on Sunday, July 20th, 2025, developed within an unstable environment with CAPE values over 3000 J/kg and 40 to 45 kts of effective shear.

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