With the recent conclusion of the meteorological spring season (months of March, April, and May), it is a good time to check in on some metrics for how it compares with previous years. The featured chart presents a season averaged dew point based on hourly reports for Des Moines with a long term average and simple linear trend line fit to the data. The average dew point is computed by averaging all the mixing ratio observations and then computing a dew point from it. Over the past 24 years, only four of those years have a value below long term average. Even with the dry weather and cool temperatures this spring, it is interesting to see this year's value close to recent years.

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