Psychrometer Chart Jun 2026

The total heat content of the air (sensible plus latent heat), typically plotted on a separate diagonal scale. How the Psychrometer Chart Works

Why is it called a psychrometer chart? A psychrometer is the simple device (a sling psychrometer) with two thermometers—a dry bulb and a wet bulb. By swinging it, you get those two readings. You plot the intersection of those two points on the chart to instantly determine Relative Humidity, Dew Point, and Vapor Pressure without needing complex math. psychrometer chart

If you work in , this "map" is one of your most powerful tools. At first glance, it looks like a confusing maze of diagonal lines and curved axes. But once you understand it, the Psychrometric Chart allows you to "see" invisible moisture in the air. The total heat content of the air (sensible