The result was a harvest of high quality fruit, with wineries running at capacity, according to a news release.
Winegrape growers and winemakers are seeing fruit with a good balance of acidity and sugar, nice color and tannins and optimal flavor.
"It is a bit unusual to have a vintage of this quality following the standout vintage we had in 2012," Charlie Hossom, viticulture director of Manteca-based Delicato Family Vineyards, said in the release.
Nat DiBuduo, president of the Fresno-based Allied Grape Growers, estimates the 2013 crop was about the same size as 2012—about 4 million tons. The California Agricultural Statistics Service won't issue its first crush estimate until early next year.
DiBuduo based his projections on a slightly smaller coastal crop and a possibly larger crop from the Central Valley.
Some of the interior growth is due to new vineyards, which are planted on tighter spacings, coming into production.