what is normal barometric pressure

According to the sources, a normal range for barometric pressure is between 28.5 (965 millibars) and 30.7 inches (1,040 millibars) of mercury at sea level. The standard barometric pressure at sea level is 29.92 inches (1,013 millibars) of mercury (also measured as 1 atmosphere) . However, barometric pressure can vary based on altitude, and pressure differences can change dramatically over a small distance. It is important to note that meteorologists care more about changes in barometric pressure than the pressure at a given time, which is why you will often see an arrow pointing up or down, or the words “rising” or “falling”, next to a pressure reading in a weather app.