The .gov means it’s official.
Federal government websites often end in .gov or .mil. Before sharing sensitive information, make sure you’re on a federal government site.
The site is secure.
The https:// ensures that you are connecting to the official website and that any information you provide is encrypted and transmitted securely.
Please note: Due to a system outage, many NCEI systems and data access are currently unavailable. We apologize for any inconvenience.
Land-Based Station
NCEI's land-based (in situ) datasets are developed from data collected across the United States and globally. Data availability varies by data type and station, and some have periods of record of more than a century. Any data product ordered from NCEI may be certified for court, but only the more commonly certified products can be certified for court online. For ordering certified copies of items where certifications are not offered online, please contact NCEI.
Access Tools
Climate Normals Quick Access
The U.S. Climate Normals Quick Access tool provides graphs and tables of average temperature, precipitation, and snowfall at more than 15,000 U.S. observation stations.
Climate at a Glance
Historical and spatial comparisons of local, county, state, regional, national, and global meteorological data to determine trends and patterns.
U.S. Climate Atlas
The U.S Climate Atlas generates monthly (1895–Present) and climatological (1991–2020) maps for minimum temperature, maximum temperature, and precipitation values from the nClimDiv Dataset.
Climate Data Online
Climate Data Online (CDO) provides free access to NCEI's archive of global historical weather and climate data in addition to station history information.
Weather and Climate Data Access
The NCEI Data Access application offers a wide variety of download and subsetting options for a growing collection of environmental data.
Past Weather
Search for recent weather data in your area. Weather forecasts are available through the National Weather Service.