Humidity returned in a big way to Iowa over this past weekend with dew points well into the 70s on Sunday. The Cedar Rapids airport topped out at 77 degrees for a dew point, which was the highest value since early July as shown by the featured chart. The chart depicts the daily range between the minimum and maximum reported dew point temperature for the site. Any days at or above 77 degrees are highlighted in red. The full year depiction has a remarkable 'jump' around the first of May. This plot sort of resembles what you would see at a location that is subject to seasonal monsoons. In this case, recall how cold and snowy April was and then a switch was flipped and we made it into late spring and summer humidity levels.

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