Relative humidity is a simple concept as weather phenomena go – but it has significant, far-reaching consequences for how we must take care of ourselves on a hot or wet day. Humidity is the amount of ...

A new study has found a significant correlation between "absolute" humidity and influenza virus survival and transmission. When absolute humidity is low -- as in peak flu months of January and ...

You may have noticed that humidity (the amount of water vapor in the air) makes a difference in how comfortable you feel outside. When the humidity is high in the summer we say it is "muggy." When it ...