A weather station refers to a particular place that has been set and equipped with special weather equipment that is used to measure and record weather patterns which will be used for climate prediction and analysis. These equipment have special sensors that help in their functions in the station. The primary instruments are namely: – the thermometer, the barometer, the hygrometer and the anemometer. We will expound more on these equipment.

1.Thermometer

This is a key particular instrument in a weather station that is used to record the temperature. it has two essential elements which are the temperature sensor which is made of mercury that will be affected when there is a change in the temperature. The second component of the thermometer is the scale that converts the recorded finding into numerical that will be easily read and recorded. The thermometer operates on the principle of thermal expansion of liquids with temperature and pressure on either heating of cooling.

2. Barometer

A barometer is a used in the measuring and recording of the atmospheric pressure of an are in the weather station. This function comes in handy in predicting the weather and climate of a region while determining  altitude at the same time. There are several types of barometers like the water based barometers, mercury barometer, vacuum pump oil barometer and aneroid barometers among others. The barometer balances the weight of the mercury in its glass tube against the area atmospheric pressure .the mercury level will keep changing until the level of it is the same as the weight of the air available in the reservoir.

3. Anemometer

An anemometer is a special instrument that is used to measure the speed of the wind of an area  ,the direct it is taking. with the provided sets of data the wind pressure can be calculated and use din weather predictions. with the knowledge of the wing direction, some weather patterns and predictions can be made, for instance an approaching storm which will help the pilots and engineers in their careers. There two major types of anemometers namely the velocity and pressure anemometers. The velocity type are further divided into cup, vane, hot wire and laser Doppler anemometer among others while the pressure type includes the plate and tube anemometers.

4.Hygrometer

This instrument is used to measure the humidity of the air of an area. The water vapor in the atmosphere is measured perfectly  with the use of this instrument. point to note though the humidity recorded is influenced with many other  factors like the pressure, the environment mass and moisture absorbed in the soil. there are several types of hygrometers namely metal-paper coil type, hair tension, psychronometer also known as wet and dry bulb thermometer among others.

These four weather  instruments are key in the setting up of a weather station and their functions are key in accurately reading and predicting the weather patterns and forecast of an area. When these patterns are well predicted there are many advantages an area will enjoy by having advance knowledge in what is expected weather wise.