We’ve recently received several reader requests asking us how to calculate relative humidity if the temperature and dew point are known. Relative humidity is the ratio (expressed as a percentage ...

Sometimes the temperature outside feels warmer than it is, and there's a reason. Here's a breakdown of the heat index.

The heat index, or apparent temperature, combines air temperature and humidity to indicate how hot it feels to the body. High ...

Using a formula, meteorologists calculate relative humidity based on how close the air temperature is to the dew point temperature. The closer they are to each other, the higher the humidity level.

The chart is a grid where you can find the heat index temperature by looking at the air temperature and relative humidity. For example, the NWS says if it's 96 outside and the humidity is 65%, the ...

So adding 11 ml. to the box would raise the relative humidity to 100%. But what if we raise the temperature to 90°? At this temperature the same box of air can hold about 31 ml. of water.

Today’s test instruments calculate relative humidity using dry and wet bulb temperatures. If you’ve been around the industry for a while, you’ve probably twirled around a sling-psychrometer to obtain ...

Relative humidity does tell us how close the air is to being saturated. You can assume that if its over 80 degrees and the relative humidity is over 50 percent, there must be a lot of moisture in ...

To find out, let’s dive into what dewpoint is and what relative humidity is. Dewpoint is a more direct measure of moisture in the air. So as the air cools to the dewpoint temperature, the air ...