Barometric Pressure in Cornwall, Ontario, CA

The pressure in Cornwall, Canada is predicted to rise over the next few hours, with an average pressure of 1003.6 hPa today, which is lower than normal.

Weather prediction: Expect fair, dry, cool weather and a strong breeze

The daily total fluctuation in pressure in Cornwall is 6.5 hPa, with a low of 1000.5 hPa and a high of 1007 hPa. The daily average here is lower than in most cities around the world.

Forecast

• Low Pressure
• Normal Range
• High Pressure

Weather patterns in Cornwall bring fast changes in barometric pressure due to cold arctic air meeting warm Gulf air. This clash causes pressure to rise and fall quickly.

Cornwall's low elevation near the St. Lawrence River and flat landscape allow air masses to move freely, causing pressure changes. Mountains and hills can block or redirect airflow, but Cornwall doesn't have many.

In winter, high pressure dominates, bringing cold and clear weather. In spring and fall, low pressure brings rain and stormy weather. Summer is a mix of both.

Cornwall has a humid continental climate, which means big temperature and pressure changes throughout the year. This leads to a varied and sometimes unpredictable weather experience.

Disclaimer

* The barometric pressure information for Cornwall, Ontario, Canada on this page is for educational purposes only. We are not responsible for its accuracy or reliability. This information is not medical advice. Consult a health professional for medical concerns and do not rely on this site for medical decisions.