Much drier air is expected for this weekend, which is a welcome break from the increased humidity levels we have seen for much of 2018. The featured chart presents the number of hours this year and on average that the dew point temperature was at a given level for Des Moines. The 2018 totals are well above average. The increased humidity has certainly helped fuel heavy precipitation events so far this summer. It has also helped buoy overnight low temperatures, which have been exceptionally warm this summer. Thankfully, the break from the elevated humidity this weekend will also help over night low temperatures drop safely into the 'open your windows' range.

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Tags:   2018   dewpoint