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The Effect of Climate on Temecula’s Vineyards

At the same time, cool, moist winds enter the AVA through the Rainbow and Deluz Gaps in the afternoon. Additionally, overnight temperatures plummet, helping to retain acidity in grapes.

While many varietals are produced in the Temecula AVA, Cabernet Sauvignon, Sauvignon Blanc, Chardonnay and Chenin Blanc have had the most success. Other red and white Bordeaux varietals as well as Rhone and Italian grapes are also widely planted.

Pierce’s Disease is carried by the glassy-winged sharpshooter and has caused problems in the region. It destroyed over 1,000 of the 2,300 acres of vineyards in the late 1990s. Fortunately, steps have been taken to isolate and combat this devastating pest.

> Temecula Valley Wineries

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