Why dew point is how you should measure how humid it is, not relative humidity

Summer is here, and heat and humidity have arrived.

Dew point vs. humidity: What’s the difference and why does it matter in Tennessee

Relative humidity and dew point are both used to identify how much moisture is in the air. Relative humidity is a percentage ...
The Hindu

Explained | What is relative humidity and why does it matter on a hot day?

Relative humidity is a simple concept as weather phenomena go – but it has significant, far-reaching consequences for how we must take care of ourselves on a hot or wet day. Humidity is the amount of ...
Astronomy

Is dew point or relative humidity more important for good astronomical seeing?

Dew point/relative humidity questions come up fairly often and this is a good one. Water vapor in the atmosphere is pretty important for deep-sky observing and photography. The atmosphere can only ...