The dry air so far this season has been noticeable. The featured chart presents the average dew point for Des Moines for the 1 Nov to 12 Dec period each year on record based on daily max and min observations. The average value this year comes in at about the 90% percentile, so about 1 in 10 years as low humidity as this one. If you are sensitive to dry air and prone to static discharging against anything conductive you touch, this season has not been that pleasant so far.

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