Projected Change in Mean Annual Precipitation; 2021-2050 relative to 1971-2000
Projected change in mean annual precipitation (%) for the contiguous United States, for
2021–2050 with respect to the reference period of 1971–2000. These are multi-model means using CMIP3
SRES A2, A1B, and B1 scenarios (left column), and CMIP5 RCP8.5, 6.0, 4.5, and 2.6 scenarios (right
column). Color only (category 1) indicates that less than 50% of the models show a statistically significant
change. Whited out areas (category 2) indicate that more than 50% of the models show a statistically
significant change, but less than 67% agree of the sign of the change. Color with hatching (category 3)
indicates that more than 50% of the models show a statistically significant change, and more than 67% agree
on the sign of the change (see Section 3).