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D flat major scale degree names12/25/2023 ![]() For example, if the air temperature is 100 ° F and the relative humidity is 15%, the heat index is 96 ° F ( use this calculator). ![]() When the relative humidity is low, the apparent temperature can actually be lower than the air temperature. For example, if the air temperature is 100 ° F and the relative humidity is 55%, the heat index will be 124 ° F. ![]() In order to determine the heat index using the chart above, you need to know the air temperature and the relative humidity. There is direct relationship between the air temperature and relative humidity and the heat index, meaning as the air temperature and relative humidity increase (decrease), the heat index increases (decreases). The body actually feels cooler in arid conditions. The opposite is true when the relative humidity decreases because the rate of perspiration increases. In other words, the human body feels warmer in humid conditions. relative humidity) is high, the rate of evaporation from the body decreases. When the atmospheric moisture content (i.e. When perspiration is evaporated off the body, it effectively reduces the body's temperature. If the perspiration is not able to evaporate, the body cannot regulate its temperature. When the body gets too hot, it begins to perspire or sweat to cool itself off. This has important considerations for the human body's comfort. The heat index, also known as the apparent temperature, is what the temperature feels like to the human body when relative humidity is combined with the air temperature. That's a partly valid phrase you may have heard in the summer, but it's actually both.
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