Dunnigan Hills

Dunnigan Hills received its designation as an AVA in 1993. Situated across 89,000 acres, Dunnigan Hills is located in the northwest portion of Yolo County. The terrain of Dunnigan Hills features rolling hills with elevations between 200 and 500 feet above sea level. The soils of the region vary from gravelly loams and sandy loams over sandstone to silt. The climate of the region is recognized for its warm days and cool nights, offering a diurnal temperature swing of up to twenty degrees. This change between day and nighttime temperatures allow for a longer growing season and allow the fruit time to develop their tannin structure and acidity. The region is known for its production of Cabernet Sauvignon, Chardonnay, Merlot, Petite Sirah, Sauvignon Blanc, Syrah, Tempranillo, and Viognier.