Heat capacity. 200F air is uncomfortable but you expose yourself to that extreme every time you take something out of the oven. 200F water, hurts even if you splash a small amount onto yourself and a cup full of it can lead to significant burns. 140F pavement on a sunny day can release back a significant amount of energy and even radiates infrared far enough away to affect joggers and cyclists causing heat stroke.
Temperature isn’t the same as energy.
