| CA DWR | California Department of Water Resources |
| CISESS NC | Cooperative Institute for Satellite Earth System Studies–North Carolina |
| CMIP6 | Coupled Model Intercomparison Project Phase 6 |
| CONUS | contiguous United States |
| COOP | Cooperative Observer Network |
| DC | District of Columbia |
| EF | Enhanced Fujita Scale |
| F | Fahrenheit |
| F | Fujita Scale |
| GCM | global climate model |
| GHCN-Daily | Global Historical Climatology Network–Daily |
| GHCN-Monthly | Global Historical Climatology Network–Monthly |
| GLERL | Great Lakes Environmental Research Laboratory |
| HURDAT2 | Hurricane Database version 2 |
| IBTrACSv4 | International Best Track Archive for Climate Stewardship version 4 |
| IPCC AR6 | Intergovernmental Panel on Climate Change Sixth Assessment Report |
| mph | miles per hour |
| MRCC | Midwestern Regional Climate Center |
| NADAv2 | North American Drought Atlas version 2 |
| NCA | National Climate Assessment |
| NCEI | National Centers for Environmental Information |
| NClimDiv | NOAA NCEI’s Climate Divisional Dataset |
| NEMAC | National Environmental Modeling and Analysis Center |
| NOAA | National Oceanic and Atmospheric Administration |
| NRCS NWCC | Natural Resources Conservation Service National Water and Climate Center |
| NSIDC | National Snow and Ice Data Center |
| PDO | Pacific Decadal Oscillation |
| PDSI | Palmer Drought Severity Index |
| RCC | Regional Climate Center |
| RCP | Representative Concentration Pathway |
| SLR | sea level rise |
| SNOTEL | Snow Telemetry (and Snow Course) data |
| SWE | snow water equivalent |
| SSP | Shared Socioeconomic Pathway |
| SST | sea surface temperature |
| USACE | U.S. Army Corps of Engineers |
| USBR | U.S. Bureau of Reclamation |