Barometric pressure is the measure of the weight of the atmosphere above us. Barometric pressure varies with altitude; a higher elevation will have less atmosphere above it which exerts less pressure. To keep readings standard across the world, barometric pressure is to be indicated at sea level.
The barometric pressure changes as the weather systems over us change. The pressure differences have a huge effect on the weather. If you know the current air pressure at your home, as well as the pressure trend, you are able to predict certain things about the weather. As a very loose rule, a high-pressure area will be clear, and a low-pressure area will be cloudy and rainy.
Many still opt to have barometers in their homes and monitor them with great regularity. There is no need to understand the complexities of all this since most barometers are marked Stormy, Rain, Change, Fair, and Very Dry but, essentially a falling barometer typically means clouds and rain and a rising barometer typically means clear and sunny.
Many have learned that a falling barometer, for whatever reason, means a shift in their mood. Yes, this could be due to weather, or perhaps, they are one in the same. But, let’s go at this another way. Maybe the weather has nothing to do with anything. Grey, cold, and rainy days can be just as susceptible to the warming influence of enthusiasm as are sunny days.
Even lousy days possess hidden wonder. Days that are expected to be wonderful before they begin turn out to be so much more frequently than days greeted with grumbling. Sometimes you just need an attitude adjustment to shift your perception of an entire afternoon and move forward into a pleasant evening