Weather is the description of the atmospheric conditions of a particular place at a particular time for a short period of time.
Climate is the composite or integrated
picture of the weather conditions over a long period of time.
Climatic data is based on calculated
averages of the data recorded over a period of 35 years. The classical period
is 30 years, as defined by WMO.
- Atmospheric pressure
Atmospheric pressure is the pressure at
any point on the surface of the earth due to the weight of the column of air
above that point.
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