Napa Valley wine grapes thrive after record rainfall, but cool weather may delay harvest

As sunlight spilled into California’s famed Napa Valley on a summer day, rows of wine grapes reflected the benefits of this winter’s record rainfall.

California has more than 960 square miles (2,488 square kilometers) of vineyards dedicated to the wine industry, perhaps none as iconic as those growing in Napa Valley just north of San Francisco.

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