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The Temperature-Dependency of Relative Humidity

Experiment: Observing the readings on a hygrometer and a thermometer

The hygrometer and the thermometer are put up in the shade, and the readings are taken after a few minutes.

Afterwards, the measuring instruments are exposed to the blazing sun.

With increasing temperature, the value for the relative humidity changes as well.

The Results:

Temperature

in 0C

Relative humidity in %

22,8

71

23,0

70

23,2

69

23,5

67

24.0

65

24,3

64

26,3

62

The relative humidity decreases with increasing temperature. That means that at a higher temperature, more water has to be present in the air in order to achieve condensation.