Now that we are in a stormy springtime pattern, most people know that night time is best time for thunder storms in Iowa. Of course, this is also the time when most of us are trying to sleep! The featured chart presents the climatology of thunderstorm reports from the Des Moines Airport partitioned by hour of the day and week of the year. The highest frequencies are clearly during the night time hours in the spring and summer seasons. Prior to about mid April, there does not appear to be much of a night time signal with all hours of the day having about the same frequencies.

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Tags:   lightning   climate