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.
Key Points to Remember: 1  Relative humidity is not an absolute measure of atmospheric water vapor content. 2  Because relative humidity is relative to saturation above a flat surface, it is possible to have humidities exceeding 100%. 3  Air in our atmosphere is a mixture of gases with very large distances between molecules.