About the Paso Robles Terroir

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Paso Robles is a large viticultural area in San Luis Obispo County. The relative inconsistancy of Paso Robles’ terroir has led some to argue that it should be broken into more specific AVAs.

There are a variety of microclimates in the AVA. Because the region is on the eastern side of the Coastal Mountain Range, it has a predominantly inland climate. The majority of the warm AVA is suited to growing Zinfandel Cabernet Sauvignon, and Rhone Varietals.

Certain nooks and crannies are located near western canyons that funnel in oceanic influence. The cool, moderate temperatures of these regions are unlike the vast majority of the AVA. An example is the cool Templeton Gap that specializes in growing Pinot Noir and Chardonnay.

Much of the terrain is comprised of rolling hills that range from 500-1500 feet in elevation. Rainfall is sporadic and varies throughout the different microclimates. The eastern part of the region tends to get significantly less rainfall than the west.

About the Paso Robles Terroir

Temperatures become more extreme as one moves inland. Some parts of the viticultural area experience 40 degree swings from day to night. While days are generally clear and sunny, a heavy marine layer often invades after the sun goes down. There are usually several Summer days over 100 degrees, and temperatures can plunge into the 20s during Winter.

Soils are primarily sedimentary, and are a mixture of loam, clay, compressed silt, and stones from eroding bedrocks. As with most quality wine regions, the soils of Paso Robles are generally well-drained.