The Capacity Center for Climate and Weather Extremes (C3WE) and the Institute for Mathematics Applied to Geosciences (IMAGE) jointly hosted the 6th Regional Climate Tutorial over a 3-day period from 10-12 July, 2017 in Boulder, CO. The Tutorial provided a broad overview of best practices for developing regional climate data and how it can be used for impact assessments. See the Regional Climate Tutorial website for a summary.