Maybe you have heard it said that it is not the heat, but the humidity that makes it so darn hot. Actually, it is the dewpoint or the measure of the amount of moisture in the air that makes it feel so ...

NORFOLK, Va. — Let's talk a little bit about dew point versus humidity and how it affects the heat index, or how hot it feels to you when you go outside in the summer. Say you have a temperature of 80 ...