Weather is defined as the atmospheric condition at a certain point of time or a short period of time. Weather is the condition of the atmosphere at a given time and place. In the field of meteorology, the weather is the collective term used to describe the physical conditions in the atmosphere, including wind speed and direction, humidity, pressure, temperature, and visibility. This is often done in combination with weather maps, which show this information in three dimensions.The temperature, precipitation, wind speed and direction and other variables that describe the atmosphere are collectively referred to as climatic conditions or atmospheric conditions. Most scientific definitions use the word climate when referring to the long-term pattern of these conditions over the entire surface of the earth. The terms weather, atmospheric conditions and climatic conditions can be used interchangeably, especially when discussing long-term trends or individual conditions.A general definition of climate and weather is that climate includes the atmosphere, ocean and biosphere, and weather involves the atmosphere. The term "climate" can also be used to refer to the climate system. The climate system is a broad term for the collection of climate components that influence the climate of a particular place at a given time.