Across much of the world, hotter days are no longer arriving alone. The air itself is changing, sometimes turning from dry ...

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. So what is it? The dew ...

Relative humidity measures how much moisture is in the air compared to how much it could hold at a given temperature. It is simply the dew point temperature divided by the air temperature, times 100.

Imagine you’re sitting among friends on the porch with a big pitcher of ice cold lemonade. The heat is searing and the air is still and stifling. It’s almost hard to breathe. You look to your friends ...