The California Wine Market Index™ publishes annual reports, historical market summaries, and research updates that provide objective insight into California’s wine-grape economy. Reports are designed for growers, wineries, lenders, investors, researchers, and policymakers seeking standardized market intelligence.
Featured CWMI Special Report
District 3 Market Brief
Sonoma: Reading the Ground Ahead
A seven-page examination of what changed in Sonoma and Marin’s purchased-grape market between 2000 and 2025—and what the district record cannot yet tell us.
Annual California Wine Market Index Reports
Each annual report summarizes statewide production, purchased tonnage, weighted average grower prices, and changes in the California Wine Index™ (CWMI). These reports provide year-over-year comparisons and long-term historical trends.
Market Updates
Throughout the year, the California Wine Market Index™ publishes commentary and market observations highlighting significant developments affecting California’s wine-grape industry, including production trends, pricing changes, weather impacts, and economic conditions.
Historical Reports Archive
As additional annual reports are published, previous California Wine Market Index™ reports will be maintained in a historical archive to support long-term market research and trend analysis.
Download Center
Reports, methodology papers, technical documentation, and supporting research will be made available in downloadable formats as they are published. Future releases may include annual summaries, special research papers, and industry presentations.
2025 Annual Report
The 2025 California Wine Market Index™ Annual Report presents the official CWMI benchmark results for 2025, including the current index value, annual market change, statewide purchased wine-grape tonnage, weighted average grower price, historical market trends, and benchmark interpretation.