The featured chart presents an arridity index evaluated over three different trailing number of days for Ames. The heat and water stress of the first half of the growing season has given way to timely rains and limited periods of very hot weather. This index is computed by taking the standardized departure of average temperature and subtracting the standardized departure of precipitation. You can generate this plot on this website for other locations and for a trailing number of days of your choice.

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Tags:   arridity