blog posts Corn fields add to muggy, humid Midwestern temps Jul 21, 2020 9:15 am by Emily SteeleWater SurveyPrairie Research Institute Share on Facebook Tweet Email One acre of corn can add between 3,000 to 4,000 gallons of water a day to the atmosphere, according to the U.S. Geological Survey. Images It’s not just the heat; it’s the humidity and “corn sweat” making muggy Midwestern summers feel even hotter. Share on Facebook Tweet Email