Barometric Pressure in New Castle, United States 
1003.5 hPa
6.2 ℃
85%
4.7 m/s
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The average pressure in New Castle, Delaware, United States today is , which is lower than normal. Pressure is trending rising.
Weather prediction: Fine, possible showers
The daily total fluctuation in pressure in New Castle is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in New Castle hour by hour across the next 6 hourly readings.
Changes in weather patterns in New Castle cause barometric pressure to rise and fall. Low-pressure systems bring rain and storms, while high-pressure systems bring clear skies.
New Castle's low elevation and coastal location near the Delaware River influence atmospheric pressure, making it prone to changes. The flat landscape allows winds to move freely, causing pressure fluctuations.
In winter, pressure is generally lower, with cold fronts bringing rain and snow. In summer, pressure is higher, with hot air masses bringing heatwaves. Spring and fall bring mild pressure and pleasant weather.
New Castle has a humid subtropical climate, with significant barometric pressure fluctuations throughout the year, making the weather unpredictable and sometimes extreme.