The chart below, which is basically the same chart, shows how much water vapor is in the air at various dew points. The dew point is in reality a temperature. So if the dew point is 68F, you have ...

If the dew point is 68F, you have 15 grams of water vapor in a kilogram of air. That’s enough water vapor for us to feel it—we would say it’s a humid day.

Let’s first state the obvious. Most techs are intimidated by Psychrometric charts and Mollier diagrams, we just are. While there are some pretty complicated formulas that back up these diagrams, using ...

Once the dew point approaches the mid 60s and especially the 70s, that’s when the humidity really becomes noticeable. The 50s and lower have a much more refreshing feel.

On Sunday we had dew points in the 30's with temperatures in the 80's. A 50 degree difference between the temperature and dew point is desertlike air. This morning our dew points are in the upper ...

A dew point greater than 65 signals there is a lot of moisture in the air, ... Here's a chart and formula you can bookmark to determine the heat index in your city.

This chart looks at the dew points between May and September, when they are at their highest. Folks who grew up in the 1960s '70s, and even '80s may remember there were, of course, summers when ...

The chart above shows you how Michiganders usually describe feeling at various dew point temperatures. We had dew points over 75 degrees at many locations. And the chart says it all- you probably ...