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Air Temperature and Relative Humidity

Experiment #P2 from Earth Science with Vernier


If you live in a mid-latitude region, you may notice changes in relative humidity from season to season. Summers tend to be humid, while winters are drier. Besides changes in relative humidity between seasons, changes can be observed throughout one day, and that is the purpose of this experiment—investigate the relationship between relative humidity and temperature over a 23‑hour period.


  • Use a Go Direct Weather Sensor to collect and analyze outdoor air temperature and relative humidity for 23 hours.
  • Determine if there is a relationship between relative humidity and air temperature.

Sensors and Equipment

This experiment features the following sensors and equipment. Additional equipment may be required.

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This experiment is #P2 of Earth Science with Vernier. The experiment in the book includes student instructions as well as instructor information for set up, helpful hints, and sample graphs and data.

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Earth Science with Vernier