This raster dataset depicts the fraction of sky obscured by clouds at 10:30am Pacific Standard Time on July 8 - September 30 between 2000-2006 in the nine county San Francisco Bay Area Region, California. This dataset was developed by Park Williams and Chris Still at the University of California at Santa Barbara.This dataset was developed/compiled for use in the San Francisco Bay Area Upland Habitat Goals Project, a Project used to identify a Conservation Lands Network (CLN) for biodiversity preservation to inform conservation investments and lasting cooperative conservation partnerships. The Conservation Lands Network GIS Database is the primary output of the Project. The data depicts the spatially explicit CLN that is recommended for the nine county San Francisco Bay Area Region, California.