Elements of Weather and Weather Instruments First before we explore the weather elements and weather instruments, we first need to know what is weather and climate. Weather is the day-to-day state of the atmosphere, and its short-term variation in minutes to weeks. Climate is the average weather in a given area over a longer period of time. A description of a climate includes information on, e.g. the average temperature in different seasons, rainfall and sunshine. Lets see and even closer look on the differences of both. What are the Elements of Weather? The elements that makes up the weather includes: Temperature Air (Atmospheric) Pressure Wind (Speed & Direction Humidity Precipitation Visibility Clouds (Type & Cover) Sunshine Duration Weather Instruments and Their Uses Atmospheric Pressure Barometers measure atmospheric pressure, providing the measurement in millibars. Under most c