From observing to see if moisture is very low temperature and high temperature at ear-less when. That values that are appropriate to the Department of meteorology data som เหุต witthayakhom school.
From these observations, it is evident that when the humidity is low and less when the temperature is higher ear. The values obtained for the equation of the Department of Meteorology Ehu sharp.
From the observation that the humidity will be very valuable when the low temperature and the temperature rise, less ear mi Which the equation has a reasonable reason with meteorological data.