Barometric Pressure in Dedham, United States 
1018.8 hPa
14.5 ℃
88%
0.45 m/s
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The average pressure in Dedham, Massachusetts, United States today is , which is higher than normal. Pressure is trending rising.
Weather prediction: Fairly fine, possible showers early
Rapid Pressure Changes
Rapid pressure changes detected in Dedham, often a sign of approaching weather shifts. See the forecast chart or get pressure alerts.
- Rapid Fall : ()
- Rapid Rise : ()
- Rapid Rise : ()
The daily total fluctuation in pressure in Dedham is , with a low of and a high of .
Forecast
Hourly Pressure Trends
Track the barometric pressure in Dedham hour by hour across the next 6 hourly readings.
Dedham has a humid continental climate. Cold air from Canada brings low pressure and snow in winter. Warm air from the Gulf of Mexico brings high pressure and warm weather.
Summer high pressure from the Atlantic Ocean brings warm and humid air. Low-lying areas like Dedham can trap cold air, making it colder.
In winter, low pressure systems bring snow. In spring and fall, high and low pressure systems alternate, bringing changing weather.
The climate type means Dedham has big changes in air pressure throughout the year. This leads to varied weather, with cold and snowy winters and warm and humid summers.