Humans are warm-blooded animals, and as a result, our body maintains itself within a fixed range of temperature-37 degrees Celsius is the average temperature of a healthy human body. Let’s consider fast-moving wind for a moment. So, how do these factors change our perception of hotness and coldness? Why does wind make us feel colder than it really is? When we combine all these factors and the measured temperature of the surrounding area, the final result is the so-called “feels like temperature”. The other factors taken into account by the “feels like temperature” are the speed and strength of wind, the temperature of the air, relative humidity of the area and the rate of heat loss from a human body when covered in clothes. It gives people a better understanding of how they would feel if they actually went out in an area where the temperature had been recorded by some meteorological instrument. “Feels like temperature”, on the other hand, is a calculated figure that considers several different factors apart from the temperature of the surrounding air. This is why Stevenson screens provide the most accurate estimates of temperature.Īs we already saw, measuring temperature consists of recording the air temperature from a thermometer that has been kept inside a Stevenson screen or by using any other appropriate instrument. To measure the exact temperature of a substance or an atmospheric region, it is necessary to eliminate the external factors that might affect the readings. It is a simple wooden box about 2 meters in height that is painted white to reflect the direct sunlight falling on it. What is a Stevenson Screen?Ī Stevenson Screen is a standard shelter that protects metrological instruments (thermometers, in particular) from rain, ultraviolet radiation and other environmental factors.
These movements are compared to a reference point to get the value of the temperature readings. Thus, when the temperature increases, the mercury expands and rises up in the tube, and when the temperature decreases, it contracts and does the opposite. It is based on the basic principle that liquids expand when heated and contract when cooled. Among these, the mercury in glass thermometer, also known as a maximum thermometer, is the simplest and most widely used. There is a wide variety of thermometers available on the market today, such as gas-bulb, mercury and bi- metal thermometers. Temperature is measured by instruments called thermometers. Glass mercury thermometers with a Celsius scale (Photo Credit : Pavelis/ Shutterstock)
So, what is this “feels like temperature”, and why is it different than the actual weather conditions? Most weather channels and meteorology apps have started using this term along with their usual verbiage to give people a better understanding of how they will actually feel out in their environment. You have likely heard the term “feels like temperature” before. It’s simply that the predicted temperature is not always what the real world feels like. Have you ever looked at the weather forecast and decided that it’s a perfect day for a picnic, but after stepping outside, you felt much warmer or colder than what the weatherman predicted? If you have, don’t worry… you’re not alone and the meteorology community isn’t involved in some vast conspiracy.
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