How To Read A Psychrometric Chart Upd Jun 2026

Run your finger up the vertical axis or locate the number "80" on the bottom horizontal axis. Draw a vertical line upward from that point.

To find the "State Point" (the exact condition of the air), you only need .

The purpose of this report is to provide a systematic procedure for reading a standard psychrometric chart. Understanding this chart is essential for analyzing moist air properties, calculating HVAC loads, designing cooling towers, and predicting human comfort conditions.