Air temperature is a measurement that determines how cold or hot the air being measured is. This temperature is the most common parameter that is tested for weather. The temperature of the air is determined by the speed, or kinetic energy, that is generated by the gases in the air.
Air temperature is also a variable that affects the reproduction and growth of rate of plants and animals. Typically, warmer temperatures stimulate more biological growth. A location's air temperature affects other variables, such as evaporation rates, wind speeds, wind directions and precipitation types. Air temperature is generally measured in either Celsius or Fahrenheit.