Barometric Pressure in Greenwich, United States 
1009.1 hPa
11.9 ℃
89%
3.38 m/s
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The average pressure in Greenwich, Connecticut, United States today is , which is considered normal. Pressure is trending rising.
Weather prediction: Fine, possible showers
Rapid Pressure Changes
Rapid pressure changes detected in Greenwich, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Fall : ()
- Rapid Fall : ()
- Rapid Rise : ()
The daily total fluctuation in pressure in Greenwich is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Greenwich hour by hour across the next 6 hourly readings.
The weather in Greenwich has high and low pressure systems that move into the area, causing changes in barometric pressure. These changes can bring different types of weather.
Greenwich's low elevation near the coast and its varied landscape of hills and valleys influence atmospheric pressure. The landscape features can disrupt airflow, leading to changes in pressure.
In the winter, high pressure systems are more common, bringing cold air and clear skies. In the summer, low pressure systems are more common, bringing warm air and humidity.
Greenwich has a humid continental climate, which means it has big changes in temperature and humidity throughout the year, leading to frequent fluctuations in barometric pressure.