This City in Washington Was Just Named One of the “Cloudiest City” in the Entire Country

Seattle: The Cloudiest City in Washington State

Seattle is the cloudiest city in Washington state, averaging 226 cloudy days per year. This is more than any other major city in the Lower 48 states. Seattle’s cloud cover is due to a number of factors, including its location, the jet stream, and sea breezes.


Seattle is located on the western slopes of the Cascade Mountains. This mountain range blocks moist air from the Pacific Ocean from reaching the eastern part of the state. The moist air is forced to rise over the mountains, which cools it and causes it to condense into clouds.

Jet stream

The jet stream is a fast-flowing band of air that circles the Earth. The jet stream often steers storms and other weather systems towards Seattle. These storms and weather systems can bring clouds and rain to the city.

Sea breezes

A sea breeze is a wind that blows from the ocean towards the land during the day. Sea breezes are often cool and moist, and they can bring clouds and fog to Seattle.

Seattle’s cloud cover has a number of impacts on the city’s climate and environment. The clouds help to keep Seattle’s summers cool and its winters mild. The clouds also help to provide moisture for the city’s plants and trees. However, the cloud cover can also make the city feel gloomy and gray, especially in the winter months.

Despite its cloud cover, Seattle is a vibrant and bustling city with a lot to offer its residents and visitors. The city is home to a number of Fortune 500 companies, as well as a thriving arts and culture scene. Seattle is also a popular tourist destination, thanks to its natural beauty and its proximity to other attractions such as Mount Rainier National Park and the Olympic National Forest.

Here are some of the ways that Seattle’s cloud cover impacts the city’s climate and environment:


Seattle’s summers are relatively cool, with average temperatures in the mid-70s Fahrenheit. The cloud cover helps to keep the summers cool by blocking out some of the sun’s heat.


Seattle’s winters are mild, with average temperatures in the mid-40s Fahrenheit. The cloud cover helps to keep the winters mild by trapping some of the heat from the ground.


Seattle receives an average of 38 inches of rain per year. The cloud cover helps to provide moisture for the city’s plants and trees.


Seattle’s cloud cover can make the city feel gloomy and gray, especially in the winter months. However, the city’s many parks and green spaces can help to offset the gloominess.

Overall, Seattle’s cloud cover is a significant part of the city’s climate and environment. It has a number of positive impacts, such as keeping the city’s summers cool and its winters mild. However, it also has some negative impacts, such as making the city feel gloomy and gray at times.

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