Tuesday was a harsh reminder of the season we are still in with temperatures back fully below freezing. For Ames, the high temperature was 16 degrees colder than the minimum high temperature over the previous eight days. The featured chart looks into this very pigeon-holed statistic. The negative bars represent the largest cool down from a given date to the previous eight days. The positive bars show the warm up. Of immediate notice is the decreased variability that happens during the summer season as elevated humidity levels and lack of strong cold air masses keep temperatures from fluctuating too rapidly. So just experienced 16 degree drop was well within the extreme values for this time of the year.

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