It describes how much water vapour is present in the air.
Wind
A measure of how hot or cold the air is.
Water that falls to the ground from the atmosphere.
It can be measured in Celsius / Centigrade or Fahrenheit degrees.
It's moving air.
Precipitation
To measure this, we use a rain gauge.
We use an anemometer to measure wind speed.
We use a hygrometer to measure this.
Temperature
Humidity
We use a thermometer to measure this.
