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The Effect of Howell Mountain Climate on Grape Growing

Vineyards grown in the Howell Mountain AVA are rarely exposed to the summer fog that regularly blankets the Napa Valley Floor. Grapes are mainly grown on southwestern facing slopes and enjoy abundant sun exposure.

Despite sunny days, daytime temperatures are generally lower than adjacent region located on the Napa Valley Floor. This is due to the higher elevation as well as a consistent breeze from the Pacific Ocean. These winds also keep humidity low and help to prevent mildew in the vineyards.

The combination of sun and moderating winds promote flavor development while also retaining acidity in grapes. The region has historically grown the red Bordeaux varietals, Cabernet Sauvignon, Merlot, Cabernet Franc, Malbec, and Petite Verdot, as well as Zinfandel and Petite Sirah. Robert Craig Wine Cellars produces a well rounded Cab from the mountain.

> Howell Mountain Wineries

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