Iowa sees the “humidity effect” this week


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Photo by Pentax_clic; Flickr

This week’s climate in some Iowa cities has been notably warm. However, the warmer than usual climate is not due to abnormally high temperatures, but rather high humidity levels.

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Photo by Iowa State University Department of Agronomy

The chart above shows the difference between temperature and heat index at an 80 or above degree level.

According to Iowa State University’s Department of Agronomy, the “humidity effect” indicates how often the humidity levels are high enough to produce a noticeable difference from the temperature.

The chart also reveals that this year heat index in Des Moines, Iowa represented by the red bar adds at least three degrees to the temperature about 50% of the time when temperatures are above 80 degrees compared to the 30% average for a five degree change represented by the blue bar.

Visit Iowa State University’s Department of Agronomy website by clicking here.

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