May 25, 2011
As has been the case in recent months, Iowa saw many large variations in temperature. The first six days of the month were much cooler than usual with temperatures falling to 20�� at Sibley and Spencer on the 3rd. A lower May minimum temperature has been recorded only four times in the past 100 years (most recently in 2005). The second six days of the month were unusually warm with the temperature soaring to 100�� at Jefferson on the 10th. This was Iowa���s earliest triple
Source: NOAA National Weather Service Storm Events Database (event 300896). Narrative written by NWS staff at the time of the event.
This event is one of many recorded floods in Marion County. See the full FEMA flood zone map, NFIP claim totals, and disaster history for the area.