The combined effects of the earth’s motions and energy from the sun and the planets formless and invisible envelope of air reacts by producing an infinite variety of weather which, in turn creates the basic pattern of global climates. There is much distinction between weather and climate.
Weather is constantly changing, sometimes from hour to hour and at other times from day to day. Weather is the term that denotes the state of the atmosphere at a given time and place. Even though these changes seem erotic, it is possible to arrive at a generalization of variations. The aggregate weather condition is called climate.
Climate is therefore defined simply as “average” weather, this includes the character of an area variation , patterns, and extremes of weather. Simply climate is the sum of all statistical weather information that describes a place or region.
The nature of climate and weather can be expressed in these terms.
1. The temperature of the air
2. The humidity of the air
3. The type and amount of cloudiness
4. The types and amount of precipatation
5. The pressure exerted by the air, and
6. The speed and direction of the wind .
These variables constitute the variables from which weather patterns and climate types are developed.