The featured map compares twenty year precipitation totals during the month of July between the past twenty years and the twenty years prior to that. An interesting spatial pattern is shown with a decrease is precipitation over the western Corn Belt and mostly an increase over the eastern section. A note of caution as a twenty year period is a bit short and leads to individual extreme years like 1993 skewing results. That aside, the regional see saw action will be interesting to watch in the coming years to see if it continues to trend in that direction.

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