When it is just about to rain and there's a lot of water vapor in the air, this is an example of a time when the humidity level is high.
Origin of humidity
- Middle English humidite from Old French from Medieval Latin hūmiditās from Latin hūmidus humid humid
From American Heritage Dictionary of the English Language, 5th Edition
- From Middle English humidite, from Old French, from Medieval Latin humiditas, from Latin umidus (“damp, moist, wet”)