Wine is made commercially in all 50 states, but California makes roughly 90% of the wine in the United States. There are a few reasons why this is the case, although a large amount of that is bulk wine coming out of the Central Valley. When it comes to fine wine, most of that is made in the coastal regions of California – Sierra Foothills and Lodi (maybe) are the main exceptions.
On Saturday I attended a session put on by Darek Trowbridge of Old World Winery (a brand I’m intimately familiar with) and two other speakers including Mark Greenspan of Advanced Viticulture. He raised some good points as to why California’s climate, and the Russia River Valley in particular, is well-suited to wine production.
The three main reasons wine grapes enjoy California’s climate are its moderate temperatures due to coastal influence, its lack of summer precipitation, and its correspondingly low humidity. Nowhere else in the world has the same climate (except maybe Chile). In other wine growing regions latitude is king, with cooler regions farther from the equator, but in California it is all about the Pacific Ocean. Some of the coolest growing regions of the state are near Santa Barbara where the valleys run east-west, allowing the cool Pacific air inland.
The Russian River Valley is on the same latitude as southern Spain and Portugal, the tip of Italy’s boot, and Athens, Greece – a far cry from Europe’s most prominent Pinot Noir region of Burgundy. The Pinot region of the Santa Rita Hills misses Europe all-together and lands one ashore in central Morocco. As curious as I am to try Moroccan Pinot Noir, I’m assuming it won’t work as well.
I’m not a meteorologist, and therefore won’t try to explain why this is true, but California (along with Chile) has unusually cold waters off of its coast for its latitude.
The climate here is perfectly suited for wine production, but it is very different from Bordeaux or Burgundy. It’s understandable that many new world winemakers are attempting to emulate the style of the greatest wines of the old world, but we need to start embracing our differences and making wine that is true to California, not France. The United States is still a young wine-producing area, and as we find our identity perhaps we will stop selling jug wine labeled “Burgundy”, but instead mass-produced Barbera/Merlot/who-knows-what-else blends from the Central Valley will be labeled, “Walla Walla”.