Many have asked the questions - should I buy Oregon or Californian Pinot Noir? Do they taste different? What IS the difference?
The answer, as is so often, is that it depends. Generally speaking, it is dependent on a multitude of factors that can occur in either region or sub-region based on climate factors, winemaker's influence, and of course vintage. This is particularly the case when it comes to Pinot Noir, the most temperamental, petulant and precocious grape of them all.
Pinot Noir requires a cool climate, yet not too cool, some rain, yet not too much, and no matter what needs chalky clay soil to thrive. Some vintages and vineyards may be warmer in some years, and cooler in others, which will dramatically affect the style of wine that is produced in Oregon or California. Since both states are adjacent to each other, well that means they should produce similar styles of wine?