The Different Types of Weather Instruments and Their Uses

Meteorologists use a wide variety of weather instruments to measure current and upcoming weather conditions. However, while you may think that these instruments are highly sophisticated and are only viable for expert use, you can find some in your household. There are various instruments used for weather that you can find in common areas. If you aren’t aware of these tools, this article will provide some useful insight to give you useful information on the different kinds of weather instruments and their uses.





The thermometer is used to measure the highs and lows of outdoor temperatures in both Celsius and Fahrenheit. Meteorologists previously used liquid-based thermometers in the late 1800s. Today, they now use electronic temperature sensor systems. The newer thermometer uses an electronic sensor to measure and record outdoor temperatures. However, traditional liquid temperatures are still being used, especially among households.




A barometer is an instrument used to measure the atmospheric pressure, providing it in millibars. Under most conditions, high and rising pressure indicates that the weather is dry and sunny. On the other hand, low and dropping pressure indicates an approaching rain. In addition to measuring atmospheric pressures, a barometer is also used to measure the air pressure outdoors.




The hygrometer measures both humidity and temperature in both Celsius and Fahrenheit. There are various types of hygrometers. One such type, called a sling psychrometer, uses a dry and wet bulb thermometer to measure the relative humidity of the air in a particular area. Older versions of hygrometers used a bundle of hair, which increases in length as the relative humidity rises.




The Anemometer is used to measure the speed and direction of the wind in an area. It’s usually measured in miles per hour. A common type of Anemometer contains three cups that are attached to a mobile shaft. As the wind blows faster, so will the spinning motion of the cups. The actual speed of the window will reflect on a dial. Another type of Anemometer uses a propeller instead of cups. However, it also accomplishes the same function.


Wind Vane


Also called a windsock, wind vanes are used to measure the direction of the wind at any given point in time. A weighted arrow spins around a fixed shaft, pointing North, South, East, or West. They’re typically marked on separate fixed shafts that are parallel to the central arrow.


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