Barometric Pressure in Hagerstown, United States 
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The pressure in Hagerstown, Maryland, United States is predicted to slowly drop over the next few hours, with an average pressure of 995.6 hPa today, which is lower than normal.
Weather prediction: Expect more wet and unsettled conditions
The daily total fluctuation in pressure in Hagerstown is 5.6 hPa, with a low of 991.5 hPa and a high of 997.1 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Hagerstown hour by hour and stay informed about how it will change over the next 6 hours.
Hagerstown's weather has a big high-pressure system from the southwest in summer, bringing warm air and high pressure, making it hot and humid.
In winter, cold fronts from Canada bring low pressure, making it cold and snowy.
The city's valley shape traps cold air in winter, making it colder than surrounding areas, and warm air in summer, making it hotter.
As Hagerstown is in a humid subtropical climate, it has big pressure changes between seasons, with summer highs and winter lows, leading to mixtures of hot and cold weather.