India, July 23 -- The hot and humid weather in parts of the central US seems to have turned unbearable lately, while corn is partly to blame for this. The term "corn sweat," which refers to water transpiration from corn, has been floating around again as temperatures spike across the Midwest region. The weather phenomenon is tied to how corn plants release moisture.

"Corn actually produces humidity, if you will, or moisture that wicks off the plant on average about 4,000 gallons per acre (per day)," farmer Mark Baker told AccuWeather.

The moisture adds to the already high humidity, pushing temperatures well over 100 degree Fahrenheit in parts of the Corn Belt like Iowa, Illinois, Missouri, and Indiana.

The effect isn't subtle. "On a no...