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Zoning Boundaries (Zoning Regulations of 2016)
District of Columbia —
District of Columbia zoning map polygons established under the Zoning Regulations of 2016 (ZR16). ZR16 superseded the Zoning Regulations of 1958 (ZR58), effective... -
Federal
U.S. Hourly Precipitation Data
National 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... -
Federal
U.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... -
Federal
Global Historical Climatology Network - Daily (GHCN-Daily), Version 3
National 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.... -
Federal
Global Surface Summary of the Day - GSOD
National 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... -
Federal
Integrated Surface Dataset (Global) (Version Superseded)
National Oceanic and Atmospheric Administration, Department of Commerce —
This version has been superseded by a newer version. It is highly recommended for users to access the current version. Users should only access this superseded... -
Federal
National Bridge Inventory
Federal Geographic Data Committee —
The National Bridge Inventory dataset is as of June 20, 2025 from the Federal Highway Administration (FHWA) and is part of the U.S. Department of Transportation... -
Federal
U.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... -
Federal
U.S. 15 Minute Precipitation Data
National Oceanic and Atmospheric Administration, Department of Commerce —
U.S. 15 Minute Precipitation Data is digital data set DSI-3260, archived at the National Climatic Data Center (NCDC). This is precipitation data. The primary source... -
Federal
U.S. Climate Normals 2020: U.S. Monthly Climate Normals (1991-2020)
National Oceanic and Atmospheric Administration, Department of Commerce —
The Monthly Climate Normals for 1991 to 2020 are 30-year averages of meteorological parameters that provide users the information needed to understand typical climate... -
Federal
U.S. Local Climatological Data (LCD)
National Oceanic and Atmospheric Administration, Department of Commerce —
Local Climatological Data (LCD) are summaries of climatological conditions from airport and other prominent weather stations managed by NWS, FAA, and DOD. The product... -
Federal
Monthly Summaries of the Global Historical Climatology Network - Daily (GHCN-D)
National Oceanic and Atmospheric Administration, Department of Commerce —
Monthly Summaries of Global Historical Climatology Network (GHCN)-Daily is a dataset derived from GHCN-Daily. The data are produced by computing simple averages or... -
Federal
National USFS Fire Perimeter (Feature Layer)
Department of Agriculture —
The FirePerimeter polygon layer represents daily and final mapped wildland fire perimeters. Incidents of 10 acres or greater in size are expected. Incidents smaller... -
Federal
U.S. Climate Normals 2020: U.S. Daily Climate Normals (1991-2020)
National Oceanic and Atmospheric Administration, Department of Commerce —
The Daily Climate Normals for 1991 to 2020 are 30-year averages of meteorological parameters that provide users the information needed to understand typical climate... -
Federal
U.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... -
Federal
U.S. Climate Normals 2020: U.S. Annual/Seasonal Climate Normals (1991-2020)
National Oceanic and Atmospheric Administration, Department of Commerce —
The U.S. Annual/Seasonal Climate Normals for 1991 to 2020 are 30-year averages of meteorological parameters that provide users the information needed to understand... -
Federal
U.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... -
Federal
Global Summary of the Month (GSOM), Version 1
National Oceanic and Atmospheric Administration, Department of Commerce —
This Global Summaries dataset, known as GSOM for Monthly, contains a monthly resolution of meteorological elements from 1763 to present with updates applied weekly.... -
Zoning Lookup Layer
District of Columbia —
The zoning layer lookup aids the online zoning map to show zoning information by address and consolidates other important information such as Ward, ANC, SMD, Historic... -
Federal
Global Summary of the Year (GSOY), Version 1
National Oceanic and Atmospheric Administration, Department of Commerce —
This Global Summaries dataset, known as GSOY for Yearly, contains a yearly resolution of meteorological elements from 1763 to present with updates applied weekly. The...
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