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.

This time of year, we often complain about strong winds or bitterly cold temperatures. But another common and often overlooked issue is extremely dry, desert-like air.We regularly display a wide range ...

Relative humidity plays a critical role in the preservation of cultural heritage. This episode breaks down how moisture in the air interacts with temperature, why fluctuations are especially dangerous ...