data

The subset1 was created by digitizing and curating the seminal report of Amerine and Winkler (1944), which provided grape harvest dates (GHDs), the quality of musts and wines, and wine tasting notes for 148 cultivars from 1935-1941 across five contrasting climatic regions of California. To put this dataset into a climate change context, we collected GHDs and must sugar content (oBrix) records from 1991 to 2018 for four representative cultivars in one of the five studied regions (Napa) in subset2. Finally, we integrated meteorological data of the five regions during 1911-2018 and calculated bioclimatic indices important for grape in subset3. The resulting database is unique and valuable for assessing the fitness between cultivars across environments in order to mitigate the effects of climate change.