Why does Spokane Washington get less rain than Seattle Washington?

Answer 1

Weather comes from the west, or off the water, sending storm and rain clouds over Seattle. However, the Cascade Mountains fall between Seattle and Spokane, creating a rain shadow that effects the eastern half of the state. Therefore, most of the precipitation seen in Seattle is stopped by the Cascades before it can reach Spokane, creating a much more dry and arid region then seen in Seattle.

Answer 2

Spokane, Washington receives less rain than Seattle, Washington primarily due to their differing geographical locations and proximity to mountain ranges. Spokane is located in the rain shadow of the Cascade Range, which blocks moisture from the Pacific Ocean, resulting in drier conditions. Seattle, on the other hand, is situated closer to the coast and is influenced by the marine climate, leading to higher levels of precipitation. Additionally, the prevailing westerly winds bring more moisture to Seattle than to Spokane.