I’ve always heard people say “hopefully it’ll rain so it’ll break the humidity. “How does that work?
In: Chemistry
Rain typically happens because warm, wet air gets pushed upwards by cool, dry air that is more dense. When the wet air rises up, it cools off in the upper atmosphere which causes the water vapor to condense into rain. When that happens, the warm air at the surface is replaced by the cooler, dry weather front that shoved it upwards. That’s what “breaks” the humidity.
Unfortunately, that isn’t always the case – if all of the air around is also warm and wet, that will move in and it’ll stay warm and humid even after the rain. Or the sun will come back out and immediately warm the air at the surface up and evaporate the moisture that just fell back into humidity.
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