What is “wet bulb temperature” and why does it matter?
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The wet bulb temperature is one of two thermometers on pyschrometer, an instrument to determine humidity and/or dewpoint.
The air temperature is referred to as the dry – bulb. The wet bulb has a wet cloth on it. When it it very dry (low humidity and low dewpoint) the cloth evaporates causing cooling. There will be a larger difference In wet bulb and dry bulb.
It matters because it can tell a meteorologist if it will be muggy and if there is a chance of rain.
– an earth Sci teacher
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