IEM Daily Feature
Friday, 10 September 2010

Breaking records frequency

Posted: 10 Sep 2010 06:02 AM


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Graph is clipped at 50 to show more detail
According to IEM computations, Ames has yet to break a recrod daily high temperature this year and only surpassed one minimum low. The featured chart presents the number of new records set per year going back to 1893. For instance, 1893 would have set 365 records that year since it was the first year. The black line is a modelled expectation of record breaking expressed simply as 365 days divided by the number of years passed by. We'd expect to break around 3 daily high and low temperature records this year. The plot highlights an interesting period in climate between 1940 and the late 1970s where our weather was rather benign with no extreme year of breaking high temperatures.

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