Washington State
The third and northernmost of the Western States, Washington makes a wide range of wines, due to the large number of different grape types grown in the area. With several sub-regions and AVAs, the climate, landscape and terroir can differ greatly in Washington. Areas like the Columbia Valley, for example, have a warm, continental climate due to the rain shadow created by the Cascade Mountain range. However, areas like Puget Sound in the west, nearer to Olympia and Seattle, have cooler, wetter climates.
California