Dew point and humidity are related, but different. Here's what dew point actually is and why dew point is a better indicator of what it feels like outside.

The dew point typically changes much more slowly compared to relative humidity, unless a front is passing through or precipitation starts to fall in a dry air mass.

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 dew point is the temperature to which air would need to be cooled in order to achieve saturation, or 100% relative humidity. Saturation is achieved when the temperature and the dew point are ...

Meteorologists talk plenty about the dew point temperature during the summer, as it is a great indicator of humidity and a condition to watch when severe weather is possible.

Even if the air temperature remains constant, a rising dew point means it feels muggier. This stickiness is related to humidity, but relative humidity is the percentage of how full the air is with ...

Let’s look at an example. Say the relative humidity is 15% on two days. Day 1 has a dew point of 60° and day 2 has a dew point of 30°. 15% of 60 is greater than 15% of 30.

The relative humidity depends on the air temperature, even when the dew point stays constant. In the example above, we have a dew point temperature that stays constant at 65 degrees.

Dew point is an overall better measurement of how humid and dry the air really feels. From the examples before, it is possible to have a high relative humidity but with low dewpoints and higher ...

According to the National Weather Service, the dew point is the temperature where the air needs to be cooled to, at constant pressure, in order to achieve a relative humidity (RH) of 100%.