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

The hygrometer is the instrument that measures relative humidity, the humidity is relative to the air temperature. This can confuse people because if you hold the ACTUAL water vapor constant but heat ...

CLEVELAND — When you hear that a winter storm dropped several inches of snow, you might not realize that it’s not always as simple as "one inch of snow equals one inch of water." In fact, the ratio of ...

Buildings require various levels of temperature and humidity controls, but when it comes to preserving historical artifacts or performing an operation, the temperature and humidity levels in a space ...

Relative humidity: The ratio (expressed as a percentage) of the amount of water vapor actually in the air to the maximum amount the air could hold at that temperature. Because air can hold more water ...

Has Sydney felt more like Cairns lately? You're not imagining it — millions of Australians up and down the east coast have sweltered through exceptionally high humidity in recent weeks. It's due to ...