Return to Meteorology Index PageWeather Instruments
Return to Meteorology Index Page
A Hygrometer measures the relative humidity. Relative Humidity is the measure of the amount of water in the atmosphere verses the amount the of water the atmosphere can hold.
A Sling Psychrometer also measures the relative humidity of the atmosphere. It works by spinning a dry bulb thermometer and a wet bulb thermometer. The difference between the two temperatures verses the dry temperature on a Relative Humidity chart shows the Relative Humidity.
A Rain Gauge measures the amount of rain that falls over a certain period of time.
A Aneroid Barometer measures the amount of air pressure in the atmosphere in inches of mercury or millibars (mb.) 860 mb to 1000 mb is rain or stormy weather, 1000 mb to 1020 is changing weather and 1020 to 1060 is dry fair weather.
A Anemometer measures wind speed but does not determine wind direction.
A Wind Vane shows which direction from which the wind blows.
A Weather Station contains many of the various instruments above and is used to forecast the day's weather.