What is Air Temperature?

By on August 12, 2010


Air temperature is a measure of how hot or cold the air is. It is the most commonly measured weather parameter. More specifically, temperature describes the kinetic energy, or energy of motion, of the gases that make up air. As gas molecules move more quickly, air temperature increases.

 

Why is Air Temperature Important?

Air temperature affects the growth and reproduction of plants and animals, with warmer temperatures promoting biological growth. Air temperature also affects nearly all other weather parameters. For instance, air temperature affects:

  • the rate of evaporation
  • relative humidity
  • wind speed and direction
  • precipitation patterns and types, such as whether it will rain, snow, or sleet.

How is Air Temperature measured?

Temperature is usually expressed in degrees Fahrenheit or Celsius. 0 degrees Celcius is equal to 32 degrees Fahrenheit. Room temperature is typically considered to be 20-25 degrees Celcius (68-77 degrees Fahrenheit).

A more scientific way to describe temperature is in the standard international unit Kelvin. 0 degrees Kelvin is called absolute zero. It is the coldest temperature possible, and is the point at which all molecular motion stops. It is approximately equal to -273 degrees Celcius and -460 degrees Fahrenheit.

Air Temperature Technology

Temperature can be measured in numerous ways, including thermistors, thermocouples, and mercury thermometers. The SWMP uses thermistors, which are metallic devices that undergo predictable changes in resistance in response to changes in temperature. This resistance is measured and converted to a temperature reading in Celcius, Fahrenheit, or Kelvin.

19 Comments

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  2. Wondimu Hailesilassie

    January 23, 2014 at 10:27 am

    It is nice presentation. i got it very helpfull

  3. ahmed murad

    April 25, 2016 at 3:29 am

    yes its also helpful for me

  4. kavya

    September 14, 2016 at 8:43 pm

    its very helpful to me thank u

  5. Arjun

    March 27, 2018 at 8:00 pm

    Very helpful thx for the paragraph on air temperature

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  8. Paul Cottone

    September 10, 2019 at 5:53 pm

    Since when is room temperature consider 77 degrees? I am in my 60’s and I was always taught that room temperature was in the 68-72 degree range! 77 degrees inside is sweltering!

    • Katelyn Kubasky

      September 13, 2019 at 9:25 am

      You are correct, the 77 degrees represents the high-end of the average. The information has been updated to reflect a more accurate range.

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