Humidity

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Map of the United States color-coded to show average relative humidity percentages at local noon in July. The western states, especially Nevada and surrounding areas, have the lowest humidity (under 20%), while humidity increases moving eastward, reaching 70% or higher in the Southeast and Northeast. The Midwest and Great Plains show moderate humidity levels between 40% and 60%.

Infographic titled Corn Sweat explains how corn increases humidity through evapotranspiration, showing that U.S. corn releases billions of gallons of water into the air. Includes a map highlighting the Corn Belt states and a corn illustration for scale.

Humidity: Media

atmosphere

Images

Map of the United States color-coded to show average relative humidity percentages at local noon in July. The western states, especially Nevada and surrounding areas, have the lowest humidity (under 20%), while humidity increases moving eastward, reaching 70% or higher in the Southeast and Northeast. The Midwest and Great Plains show moderate humidity levels between 40% and 60%.

average July relative humidity values: continental United States

Average July relative humidity values for the continental United States.

Encyclopædia Britannica, Inc.

Infographic titled Corn Sweat explains how corn increases humidity through evapotranspiration, showing that U.S. corn releases billions of gallons of water into the air. Includes a map highlighting the Corn Belt states and a corn illustration for scale.

An infographic showing how corn sweat, that is, evapotranspiration from corn tissues, can add substantial amounts of water vapor to the atmosphere.

Although corn sweat is not the most significant contributor of water vapor to the...

Encyclopædia Britannica, Inc.

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