Barometric Pressure in Mount Lebanon, United States 
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The pressure in Mount Lebanon, Pennsylvania, United States is predicted to slowly drop over the next few hours, with an average pressure of 978.3 hPa today, which is lower than normal.
Weather prediction: Expect more wet and unsettled conditions
The daily total fluctuation in pressure in Mount Lebanon is 2.9 hPa, with a low of 977 hPa and a high of 979.9 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Mount Lebanon hour by hour and stay informed about how it will change over the next 6 hours.
Mount Lebanon, Pennsylvania has a humid continental climate with cold winters and warm summers. This means air pressure is usually high in winter and low in summer.
High air pressure in winter brings cold air from Canada, making Mount Lebanon cold. Low air pressure in summer brings warm air from the Gulf of Mexico, making it warm.
Mount Lebanon's geography, being in a valley, traps cold air in winter, making it colder. In summer, the valley helps keep warm air close, making it warmer.
As seasons change, air pressure patterns shift. In spring and autumn, air pressure is usually more balanced, bringing mild weather. In winter, high pressure brings cold and snow, while in summer, low pressure brings warm and humid weather.