IEM Daily Feature
Monday, 13 May 2013

30s to 90

Posted: 13 May 2013 05:42 AM

Low temperatures on Sunday morning were very chilly as nearly the entire state was below 40 degrees and some locations even well below freezing. High temperatures on Tuesday are expected to push 90 degrees for much of the state. How common is it to go from having lows in the 30s to having a high 90 or above two days later? The featured map plots the number of events per climate site that this situation has occurred since 1951. The largest numbers are over Western Iowa. The reason is that the soils are sandier, which allows for more rapid heating. It is also closer to the high plains climate and Rocky Mountains, where intense pushes of hot and dry air are more common.

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