Outside these areas, the sign and magnitude of projected changes varies between models, leading to substantial uncertainty in precipitation projections. (mediamatters.org)
They also conclude that regional precipitation projections for warming of 1.5 degrees C and 2 degrees C remain uncertain, «but the eastern U.S. is projected to experience wetter winters and the Great Plains and Northwest are projected to experience drier summers in the future.» (sciencedaily.com)
For Montana, increasing temperatures will likely intensify drought when it occurs, but precipitation projections do not reveal increasing duration or frequency of drought. (montanaclimate.org)