What is the barometer readings? waht is normal?

Question

What is the barometer readings? waht is normal?

Answer 1

A barometer measures atmospheric pressure. It is measured in various units, one of the oldest being inches of mercury.  Other units include pounds per square inch (PSI) kilo-Pascals (kPa) and atmospheres (ATM). Standard pressure is 29.92 inches of mercury, 14.7 PSI, 100 kPa or 1 ATM.

Lower barometer readings are generally associated with less stable weather (as in, "low pressure system"), while higher ones are generally associated with more stable weather (as in, "high pressure system"). Atmospheric pressure decreases with altitude, so normal pressure at sea level is higher than the normal pressure at the top of a mountain.

Answer 2

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Answer 3

Barometric readings show what the barometric pressure or air pressure is. Air pressure is the force exerted on you by the weight of tiny particles of air.

Barometers are used to measure the current air pressure at a particular location in "inches of mercury" or in "millibars" (mb). A measurement of 29.92 inches of mercury is equivalent to 1013.25 millibars.

Air pressure can tell us about what kind of weather to expect as well. If a high pressure system is on its way, often you can expect cooler temperatures and clear skies. If a low pressure system is coming, then look for warmer weather, storms and rain.

Average sea-level pressure is 29.921 inches of mercury.

As altitude increase, air pressure decreases.