There are different graphs that represent a number of things and statistics. Likewise, a climograph expresses the climatic parameters. It is a representation of the temperature and degree of precipitation which account for the results. Different climographs are developed for different locations and can help in predicting humidity and the degree of rain.
For instance, you can predict whether a city is subject to seasonal monsoons or not by a climograph. It is a valuable means of measuring and predicting the weather, especially in areas that are likely to have flooding or have been exposed to floods in the past. The climograph can help estimate the rain and hence act as a warning.