dampness
moisture
relative humidity
wetness
mugginess
dew point
humid
humidifier
humidify
hygrometer
altitude
climate
density
dioxide
drought
dryness
evaporation
fog
heat
ozone
perspiration
pollutant
pollution
radiation
rainfall
temperature
turbulence
vegetation
vibration
volatility
acidity
fluidity
liquidity
morbidity
rapidity
rigidity
solidity
superfluidity
timidity
turbidity
validity