(AP) — In this photo taken Friday, July 26, 2013, assistant winemaker and viticulturist Nathalie Jure Buckland looks at veraison, the onset of ripening, taking place on Cabernet Sauvignon grapes at Opus One winery in Oakville, Calif.
One thing that is certain about the weather in California’s premiere wine grape-growing region is that there is no such thing as normal, and 2013 is living up to that adage. After dealing with cool temperatures in three of the past four years that slowed ripening and kept grapes hanging on the vine until the fall rainy season threatened, growers in Napa Valley are dealing with an opposite challenge. (AP Photo/Eric Risberg)