National

National Climate Assessment 2018 (consortium of federal agencies)
“The National Climate Assessment (NCA) assesses the science of climate change and variability and its impacts across the United States, now and throughout this century.”

National Climate Assessment 2014 (consortium of federal agencies)
“The National Climate Assessment summarizes the impacts of climate change on the United States, now and in the future….A team of more than 300 experts guided by a 60-member Federal Advisory Committee produced the report, which was extensively reviewed by the public and experts, including federal agencies and a panel of the National Academy of Sciences.” 

Climate Change Resource Center (USDA Forest Service)
“The Climate Change Resource Center (CCRC) is a web-based, national resource that connects land managers and decisionmakers with useable science to address climate change in planning and application.”

Regional

NW Climate Hub (US Dept. of Agriculture)
“The Pacific Northwest Climate Change Hub encompasses Alaska, Idaho, Oregon, and Washington. The purpose of the Hub is to deliver science-based knowledge and practical information to farmers, ranchers, forest landowners, and Native American tribes that will help them to adapt to climate change.”

Oregon Climate Change Research Institute (Oregon State University)
Research and information clearinghouse on climate and climate change-related topics relevant to Oregon. 

Oregon Climate Service (Oregon State University)
Repository for Oregon weather and climate information, including historical data.

Climate Impacts Group (University of Washington)
“The Climate Impacts Group (CIG) is an internationally recognized interdisciplinary research group studying the impacts of natural climate variability and global climate change (“global warming”). Research at the CIG considers climate impacts at spatial scales ranging from local communities to the entire western U.S. region, with most work focused on the Pacific Northwest (PNW).”

Climate Impacts in the Northwest (US EPA)
Short summaries of projected impacts on water resources, forests, agriculture, and coastal resources in the Pacific Northwest.

National Climate Assessment – Summary of Northwest climate change impacts