Dashed: each vintage. Solid: five-year running average of season temperature.
Dashed: each vintage. Solid: five-year running average of season rainfall.
Temperature here is relative to Northern Rhône's own normal, not an absolute scale across regions. Every value comes from that year's own vintage report; a missing value means the report did not describe that part of the season, not that nothing happened.
Verified reports were rebuilt from the regional body's own vintage reports and independent trade coverage, with every claim traced to a fetched source.