Climate is the statistics of weather, usually over a 30-year interval. It is measured by assessing the patterns of variation in temperature, humidity, atmospheric pressure, wind, precipitation, atmospheric particle count and other meteorological variables in a given region over long periods of time.
Once you have the saturation vapor pressure and the actual vapor pressure, relative humidity can be computed by dividing the actual vapor pressure by the saturation vapor pressure and then multiplying by 100 to convert the quantity to a percent. (7) Relative Humidity(RH) in percent =(E/Es)*100.
Basic Calculations. Introduction. Relative humidity (RH) is the actual amount of water vapor in the air as a percentage of the maximum amount of water vapor which the air could hold at a given temperature. When air is warmed, its ability to hold water vapor is increased, and when cooled, it can hold less water vapor.