What method is typically used to measure wind speed?

The method typically used to measure wind speed is an anemometer. An anemometer is specifically designed for this purpose, as it can accurately detect the speed and sometimes the direction of the wind. It works by using revolving cups or blades that spin in the wind; the faster the wind blows, the more rapidly it causes the cups to turn. The rotation is then converted into a wind speed measurement.

Other instruments listed, like a barometer, rain gauge, and psychrometer, serve different functions. A barometer measures atmospheric pressure, while a rain gauge collects and measures the amount of precipitation. A psychrometer is used to determine humidity by measuring the temperatures of a wet-bulb and a dry-bulb thermometer. Each of these tools plays an important role in weather observation, but none is designed for measuring wind speed like the anemometer.