The analysis of the 1950–1999 gridded climatology revealed that all regions expe- rienced growing season warming with 17 of the 27 wine regions having statistically significant trends (Table I and Figure 2). Temperature trends were significant in the majority of the U.S. and European wine regions while the majority of the South- ern Hemisphere trends were insignificant. Averaged across regions with significant trends, 1950–1999 warming was 1.26◦C. Similar trends were found during the dormant period (winter) with all regions warming and 15 of the 27 locations having