Event Details

© Stephen Rothfeld
< Events List

2017 Growing Conditions Report


Yountville Hall - 6550 Yount Street, Yountville, CA, United States


9:00am - 10:30am


Eagerly awaited by NVG members each year, the Growing Conditions Report is one of the exclusive benefits of membership that can assist you with running a successful and sustainable vineyard business.

2017 will be remembered for its extreme weather events and natural disasters. Join Caleb Mosley, Michael Wolf Vineyard Services, and PJ Alviso, Duckhorn Vineyards, for an in-depth discussion about the growing season and the weather events that shaped the vintage. This year, the presentation will feature a more interactive and Q&A-focused format, so attendees are encouraged to bring your questions and comments.

The Growing Conditions Report, produced in cooperation with Pacific Geodata, Picovale Weather Service, Michael Wolf Vineyard Services, and Duckhorn Wine Company contains maps, tables, and graphs depicting regional Napa climate data and will provide 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
  • Rainfall  

Additionally, the report provides data for previous growing seasons (starting in 2009), allowing 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.  This year, we will also take an in-depth look at two weather events that shaped the 2017 vintage providing case studies and highlights to the 2017 report. Attendees will receive a copy of the report at the seminar.

This seminar will also be video recorded as part of an NVG Trial Program. If you cannot attend this event  in-person but would like to view it online, please select the “Video Recording” ticket and you will be emailed more information. 2018 Video Recording tickets for NVG events are underwritten by the USDA Risk Management Grant.

This program is partially funded by the USDA Risk Management Education Partnerships Program Grant