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    FederalU.S. Hourly Precipitation DataNational Oceanic and Atmospheric Administration, Department of Commerce — Hourly Precipitation Data (HPD) is digital data set DSI-3240, archived at the National Climatic Data Center (NCDC). The primary source of data for this file is...
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    FederalUSGS Water-Quality Data for the Nation - National Water Information System (NWIS)Department of the Interior — The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the...
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    FederalU.S. Daily Climate Normals (1981-2010)National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. Daily Climate Normals for 1981 to 2010 are 30-year averages of meteorological parameters for thousands of U.S. stations located across the 50 states, as well...
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    FederalGlobal Historical Climatology Network - Daily (GHCN-Daily), Version 3National Oceanic and Atmospheric Administration, Department of Commerce — The Global Historical Climatology Network - Daily (GHCN-Daily/GHCNd) dataset integrates daily climate observations from approximately 30 different data sources....
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    FederalGlobal Surface Summary of the Day - GSODNational Oceanic and Atmospheric Administration, Department of Commerce — Global Surface Summary of the Day is derived from The Integrated Surface Hourly (ISH) dataset. The ISH dataset includes global data obtained from the USAF Climatology...
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    FederalWatershed Boundary Dataset (WBD) - USGS National Map Downloadable Data Collection NGDADepartment of the Interior — The Watershed Boundary Dataset (WBD) is a comprehensive aggregated collection of hydrologic unit data consistent with the national criteria for delineation and...
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    FederalSafe Drinking Water Information System (SDWIS)U.S. Environmental Protection Agency — The Safe Drinking Water Information System (SDWIS) contains information about public water systems and their violations of EPA's drinking water regulations.
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    FederalU.S. Annual/Seasonal Climate Normals (1981-2010)National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. Annual Climate Normals for 1981 to 2010 are 30-year averages of meteorological parameters that provide users with many tools to understand typical climate...
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    FederalNOAA NEXt-Generation RADar (NEXRAD) Products NGDANational Oceanic and Atmospheric Administration, Department of Commerce — This dataset consists of Level III weather radar products collected from Next-Generation Radar (NEXRAD) stations located in the contiguous United States, Alaska,...
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    Federal1/3rd arc-second Digital Elevation Models (DEMs) - USGS National Map 3DEP Downloadable Data Collection NGDADepartment of the Interior — This is a tiled collection of the 3D Elevation Program (3DEP) and is 1/3 arc-second (approximately 10 m) resolution. The 3DEP data holdings serve as the elevation...
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    FederalNOAA Monthly U.S. Climate Divisional Database (NClimDiv)National Oceanic and Atmospheric Administration, Department of Commerce — This dataset replaces the previous Time Bias Corrected Divisional Temperature-Precipitation Drought Index. The new divisional data set (NClimDiv) is based on the...
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    FederalUSGS Surface-Water Data for the Nation - National Water Information System (NWIS)Department of the Interior — The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the...
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    FederalU.S. Monthly Climate Normals (1981-2010)National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. Monthly Climate Normals for 1981 to 2010 are 30-year averages of meteorological parameters for thousands of U.S. stations located across the 50 states, as...
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    FederalICLUS v2.1.1 population projectionsU.S. Environmental Protection Agency — The methodology used to produce these projections differs from ICLUS v2.0 (https://cfpub.epa.gov/ncea/iclus/recordisplay.cfm?deid=322479). The demographic components...
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    FederalUSGS Groundwater Data for the Nation - National Water Information System (NWIS)Department of the Interior — The USGS compiles online access to water-resources data collected at approximately 1.5 million sites in all 50 States, the District of Columbia, Puerto Rico, the...
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    FederalU.S. Hourly Climate Normals (1981-2010)National Oceanic and Atmospheric Administration, Department of Commerce — The U.S. Hourly Climate Normals for 1981 to 2010 are 30-year averages of meteorological parameters for thousands of U.S. stations located across the 50 states, as...
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    FederalQuality Controlled Local Climatological Data (QCLCD) PublicationNational Oceanic and Atmospheric Administration, Department of Commerce — Quality Controlled Local Climatological Data (QCLCD) contains summaries from major airport weather stations that include a daily account of temperature extremes,...
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    FederalUnited States Climate Reference Network (USCRN) Quality Controlled DatasetsNational Oceanic and Atmospheric Administration, Department of Commerce — USCRN Products are available on public FTP and derived from the USCRN processed data. Available parameters include averages and calculated values for precipitation,...
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    FederalNCEP North American Regional Reanalysis (NARR), for 1979 to PresentNational Oceanic and Atmospheric Administration, Department of Commerce — The North America Regional Reanalysis (NARR) Project is a reanalysis of historical observations using a 32-km version of the National Centers for Environmental...
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    FederalGISS Surface Temperature AnalysisNational Oceanic and Atmospheric Administration, Department of Commerce — The GISTEMP dataset is a global 2x2 gridded temperature anomaly dataset. Temperature data is updated around the middle of every month using current data files from...
