On This Day in Iowa Weather History

August 31

1915: An unusually cool August culminated in frost across areas of Iowa on the last two mornings of the month. On the 31st many stations across the eastern half of the state dropped into the 30s with reported lows of 38 F at Cedar Rapids, 37 F at Oskaloosa, 36 F at Keokuk and Waterloo, 35 F at Fairfield, and 32 F at Decorah. At Des Moines this remains the coolest August on record with an average temperature of only 67.3 F.

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The "On This Day in Iowa Weather History" feature contains some memorable weather events and trivia from the early 1800's to the present day for Iowa. Many sources were used to research and compile the data and the above information may represent official, unofficial, or estimated values. As noteworthy weather events occur, they will be added to the database.

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