Thursday was a very cold day in Iowa for May with highs struggling to reach 50 degrees and some locations reporting frozen precipitation. The featured chart looks at the hourly temperature reports from the Des Moines Airport versus long term hourly climatology for the middle of May. The bottom chart shows the hourly temperature percentiles with lower numbers indicating more extreme cold. Needless to say, we should be at much warmer levels than those on Thursday. Friday is starting off very cold as well with frost expected over much of the state this morning.

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Tags:   may14