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  • About Us
    • Mission & History
    • Board of Directors
    • Our Team
    • Grower of the Year
    • Strategic Sponsors
    • Contact Us
  • Sustainable Viticulture
    • Ag Preserve >
      • Conservation Landscape
    • Agricultural Burning
    • Climate Resilience
    • Cover Crops
    • Heat & Drought
    • Pests & Diseases
    • Water & Irrigation >
      • Groundwater Sustainability Plan
  • Resources
    • Best Practices
    • COVID-19
    • Directory
    • Grants
    • Grower Resources >
      • Crop Insurance
      • Napa Winegrape Market
      • Tools for Grape Sales
      • Weather Alert
    • Industry Blog
    • Reports & Research >
      • Cost Studies
      • Grape Crush Report
      • Growing Conditions Report
      • Hang Time Study
      • Napa County Crop Report
      • Vineyard Trials
      • Wages & Benefits Survey
    • Wildfires
  • Events
    • Calendar
    • Past Presentations
    • Harvest STOMP®
    • Fire Resources Fair
    • 48th Annual Celebration
  • Members
    • Member Portal
    • How to Join >
      • Growers
      • Vineyard Management Companies
      • Associates
  • Donate
    • Support Wildfire Initiatives
    • Our Donors
    • Your Impact
    • Ways to Give
    • Quarterly Newsletter

Growing Conditions Report

The Growing Conditions Report

The Growing Conditions Report (GCR), produced in cooperation with Pacific Geodata, Picovale Weather Service, Pina Vineyard Management, and Silverado Farming Company, contains maps, tables, and graphs depicting regional Napa climate data and provides a countywide overview of general growing conditions.

The report employs three simple and widely understood climate measurements known to influence grapevine development, ripening, and crop loads: growing degree days (GDD), total frost hours, and rainfall.

The GCR was started in 2010 with the intention of becoming a tool that would allow grapegrowers to compare conditions across vintages. Over time, a multi-year collection of reports will add to our understanding of regional climate conditions and help to identify climate trends.

The reports are available for NVG grower and vineyard manager members as a benefit of membership. If you are not a member and would like access to this or previous years' reports, please contact info@napagrowers.org to inquire about membership. 
Access All Growing Condition Reports

Watch Now: 2021 Growing Conditions Report

2021_growing_conditions_report.pdf
File Size: 19814 kb
File Type: pdf
Download File

GCR Video Series

​To celebrate our milestone of the GCR, we made a series of videos to recap the past decade of data, told through the experiences of fellow growers.
2020
2019 - 2018
2017 - 2016
2015 - 2014
2013 - 2012
2011 - 2010
Trade Resources: Speakers | Press | Sponsors
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831 Latour Court, Suite A  |  Napa, CA 94558
Phone: (707) 944-8311 | info@napagrowers.org
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