Psychrometric Chart Tutorial ●

Find 85° on the bottom axis (horizontal). Follow the vertical line straight up.

The Psychrometric Chart Explained: Your No-Nonsense Guide to HVAC’s Most Powerful Tool psychrometric chart tutorial

Find the 60% RH curve (it looks like a line bowing to the right). Follow that curve until it crosses the vertical 85° line. Find 85° on the bottom axis (horizontal)