Meanwhile

Can someone explain to me what relative humidity is? “Relative Humidity”. We all say it, but relative to what? Relative to how much moisture the air can hold at that altitude and temperature? That would be logical to me. How is it that we wake up in the morning in Arizona, it is raining, and the relative humidity is 49%? I got on line. It was raining on the Texas coast too, but the relative humidity there was 99%. Is the rain that much wetter in Texas? Were the raindrops that much farther apart in Arizona? The air was filled with water in both places.

I don’t understand relative humidity.