Barometric Pressure
Barometric Pressure in Cornwall, United States 
0000 hPa
00.0 ℃
00.0 m/s
00.0%
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The pressure in Cornwall, Pennsylvania, United States is predicted to slowly rise over the next few hours, with an average pressure of 989.3 hPa today, which is lower than normal.
Weather prediction: Expect more fair, dry, cool weather
The daily total fluctuation in pressure in Cornwall is 3.9 hPa, with a low of 986.9 hPa and a high of 990.8 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in Cornwall hour by hour and stay informed about how it will change over the next 6 hours.
Cornwall, Pennsylvania has changing air pressure due to its location near mountains and the Atlantic Ocean. Mountains block and redirect winds, affecting air pressure. In winter, cold air from Canada brings low pressure and cooler temperatures. In summer, warm air from the Atlantic Ocean brings high pressure and warmer temperatures. Cornwall has a humid continental climate, meaning it has big temperature differences between seasons, which affects air pressure.