The featured chart displays a simple hourly averaged wind speed by month for Ames. The month of August shows up as the lowest value for just about every hour of the day. The light winds are one of the reasons the summer heat can feel the most oppressive during this month. Winds on Sunday were generally light over the state, but will be on the increase for Monday with a passing storm system. There are many interesting climatology features shown by this chart including a clear diurnal signal as solar heating of the ground drives vertical mixing of the air, which mixes down higher speed air aloft to the surface.

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