The Regional Climate Change Viewer (RCCV) is a straightforward application that allows users to visualize and download selected subsets of the data from the Dynamical Downscaling project. The data are averages over political boundaries (states and counties) and USGS hydrologic units (HUC2, HUC4, HUC8). The currently available variables are :temperature, precipitation, soil moisture, snow, growing degree days and evapotranspiration). Detailed information and usage instructions can be found in the RCCV Tutorial. We also provide a series of progressively more in-depth tutorials (Climatology 101, 201, 301) that focus on downloading and manipulating the data locally in a spreadsheet. A detailed description of additional model evaluation [...]