Image (click to enlarge): Iowa 24-hour precipitation ending 7 am CDT, April 15, 2012, from National Weather Service.
April 15, AM Update: An additional 0.17" of rainfall in the 2 hours before midnight local time brings the daily record total to 3.43". The National Weather Service reports that Des Moines climate records date back to 1878.
The 3.26" of rainfall at Des Moines, Iowa on Saturday not only smashes the record for April 14 of 2" in 1987, but it is only the second time that a daily rainfall has exceeded 3" in the first 4 months of the year at Des Moines. The 2.35" which fell in the hour ending at 6 pm CDT was enough by itself to break the old daily record. The all-time record daily rainfall for April occurred on a date 2 weeks later, 3.80" on April 28 in 1974.
Des Moines climate records began in 1896.
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