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Barometric Pressure in Ketchikan, Alaska, US


0000 hPa
00.00 inHg


00.0 ℃
0.00 ℉


00.0 m/s
00.0 mph


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The pressure in Ketchikan, United States United States is predicted to slowly rise over the next few hours, with an average pressure of 1014.3 hPa today, which is considered normal.


Weather prediction: Expect more fair, dry, cool weather

The daily total fluctuation in pressure in Ketchikan is 4.3 hPa, with a low of 1012.7 hPa and a high of 1017 hPa. The daily average here is higher than in most cities around the world.



The barometric pressure in Ketchikan, Alaska is typically low. The average annual pressure is around 30.12 inches. This is lower than many parts of the United States.

Barometric pressure

Ketchikan is surrounded by mountains. The city sits on the western coast of Revillagigedo Island. The island is part of the Alexander Archipelago.

The surrounding mountains and water influence the barometric pressure. Moist air from the Pacific Ocean moves over the mountains. This air cools and condenses, resulting in precipitation.

The unique combination of mountains and ocean creates a unique pressure pattern. The low pressure system is stable, but prone to fluctuations. This leads to rapid changes in weather.

Rainfall is heavy in Ketchikan, with over 150 inches annually. Fog is common, especially in the morning. The low pressure system contributes to these weather conditions.


* The barometric pressure information for Ketchikan, Alaska, United States 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.