Figure 5 – Winkler Regions for the western U.S. based on Daymet (Thornton et al., 1997) daily 1 km resolution
daily temperature data (growing degree-days, base 10°C over Apr-Oct). The left panel is the average ov er the
1980-2003 time period. The middle panel is a projection of a +1.0°C increase over 1980-2003 (low range of
projected climate change by 2049). The right panel is a projection of a+3.0°C increase over 1980-2003 (high
range of projected climate change by 2049).