Wine quality and the weather in the Hunter Valley, Margaret River, Coonawarra and Barossa Valley

摘要

We quantified the associations between red wine quality and weather factors in four wine regions. Using maximum temperature as an example, better vintages were associated with: temperature above 34°C throughout most of ripening in the Hunter Valley,below 28°C in early January in Margaret River, 28-34°C towards harvest in Coonawarra, and below 22°C in late January and early February and 28-31°C towards harvest in the Barossa Valley. Our quantitative assessment allows for the timing and magnitude of weather influences on wine quality on a regional basis.