What is the weather like year-round?
Question & Answer about Washington
Updated April 29, 2026
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Washington State Facts
State Flag
Washington
Capital
Olympia
State Bird
Willow Goldfinch
Statehood
November 11, 1889
State Flower
Coast Rhododendron
Population
7.9 million (2020)
Answer
Washington state experiences diverse weather patterns year-round due to its varied geography, including coastal areas, mountain ranges, and inland regions. The western part of the state, including cities like Seattle, has a temperate maritime climate characterized by mild, wet winters and cool, dry summers. This region receives significant rainfall mostly between October and April, while summers tend to be relatively clear and pleasant with moderate temperatures averaging in the 70s Fahrenheit. In contrast, eastern Washington, such as Spokane, experiences a more continental climate with colder winters, often dipping below freezing, and hotter, drier summers with temperatures frequently reaching the 80s or 90s Fahrenheit.
The Cascade Mountains create a rain shadow effect that results in eastern Washington being much drier than the west. Snowfall is common in the mountains during winter months, supporting winter sports and contributing to the state’s water supply. Coastal areas remain relatively mild throughout the year, rarely experiencing extreme temperature swings, while eastern Washington’s weather is more variable with colder winters and hotter summers. Overall, Washington’s weather is highly influenced by its topography, with significant differences between the wetter west and the drier east.
Key Points:
- Western Washington has mild, wet winters and dry, cool summers.
- Eastern Washington experiences colder winters and hotter, drier summers.
- The Cascade Mountains create a rain shadow, causing regional climate differences.
Washington’s weather varies greatly depending on location and season.
The Cascade Mountains create a rain shadow effect that results in eastern Washington being much drier than the west. Snowfall is common in the mountains during winter months, supporting winter sports and contributing to the state’s water supply. Coastal areas remain relatively mild throughout the year, rarely experiencing extreme temperature swings, while eastern Washington’s weather is more variable with colder winters and hotter summers. Overall, Washington’s weather is highly influenced by its topography, with significant differences between the wetter west and the drier east.
Key Points:
- Western Washington has mild, wet winters and dry, cool summers.
- Eastern Washington experiences colder winters and hotter, drier summers.
- The Cascade Mountains create a rain shadow, causing regional climate differences.
Washington’s weather varies greatly depending on location and season.
