Barometric Pressure in New Castle, United States 
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The pressure in New Castle, Pennsylvania, United States is predicted to slowly rise over the next few hours, with an average pressure of 982.4 hPa today, which is lower than normal.
Weather prediction: Expect more fair, dry, cool weather
The daily total fluctuation in pressure in New Castle is 8.6 hPa, with a low of 978.8 hPa and a high of 987.4 hPa.
Forecast
Hourly Pressure Trends
Track the barometric pressure in New Castle hour by hour and stay informed about how it will change over the next 6 hours.
New Castle's weather patterns cause rapid changes in barometric pressure due to its location in a valley where air masses from the Great Lakes and Atlantic Ocean meet. This collision of air masses leads to frequent pressure changes.
The city's elevation of 820 feet above sea level and surrounding hills influence atmospheric pressure variability, making it more unstable. The landscape also traps air, making pressure changes more extreme.
During winter, pressure is usually lower due to cold air from the north, bringing snow and cold weather. In summer, pressure is higher due to warm air from the south, bringing heat and thunderstorms.
New Castle has a humid continental climate, which means large pressure fluctuations are common, making the weather unpredictable and changeable, with four distinct seasons.