↑ Hide Info

NCEI maintains a suite of monitoring services that track key climate indicators using objective methods to provide historical context for current environmental conditions. Climate Monitoring services supply detailed information about temperature and precipitation, snow and ice, drought and wildfire, storms and wind, and weather patterns.

Latest Monitoring Information

Products By Category

Monthly Climate Reports
A collection of monthly summaries recapping climate-related occurrences on both a global and national scale
Climate at a Glance
Historical and spatial comparisons of local, county, state, regional, national, and global meteorological data to determine trends and patterns
Billion-Dollar Weather and Climate Disasters
Summary of U.S. billion-dollar weather and climate related disaster research, methodology, and data sources
National Integrated Drought Information System (NIDIS)
The National Integrated Drought Information System (NIDIS) is a multi-agency partnership that coordinates drought monitoring, forecasting, planning, and information at national, tribal, state, and local levels.
National Temperature Index
Several different methodologies to estimate the temperature history of the contiguous United States, including NCEI's current operational version. Users can graph, compare and save the output from these different methods.
U.S. Maps
Daily, Weekly, Month-to-Date, Projected, 1-Month, 3-Month, 6-Month, 12-Month, and Year-to-Date National, Regional, Statewide, Divisional, County, and Gridded Temperature and Precipitation Maps
National Trends
National trends for Mean Temperature, Maximum Temperature, Minimum Temperature, and Precipitation for each month and season for the most recent complete 30-year period and the complete period of record
U.S. Percentage Areas (Very Warm/Cold, Very Wet/Dry)
This product shows, for each month, season and year since 1895, how much of the contiguous United States experienced extreme (top or bottom 10%) temperature and precipitation conditions.
GHCN Gridded Products
Global Gridded Monthly, Seasonal, and Annual Global Temperature, Precipitation, and Extremes Products
Microwave Sounding Unit Temperature Anomalies
Temperature history for three different layers of the atmosphere: lower troposphere, middle troposphere, and lower stratosphere. These are different parts of the atmosphere than the more familiar surface temperature
North American Drought Monitor (NADM)
Maps, narratives, indicators, and data depicting areas of drought and abnormally dry conditions across the North American continent, compiled from national analyses prepared in the U.S., Canada, and Mexico
Weekly Palmer Drought Indices
Weekly Palmer-type maps and time series beginning in 2005
Drought Termination and Amelioration
Estimations of drought recovery in the Contiguous U.S. based on Palmer drought analysis using varying scenarios
North America Drought Indices and Indicators Assessment
Information about the effectiveness of drought indices and indicators are across North America
Historical Palmer Drought Indices
Create year-over-year animations of various Palmer-type drought analyses
State Climate Extremes Committee (SCEC)
The State Climate Extremes Committee (SCEC) was created in 2006 in response to the need for proper and comprehensive evaluation of meteorological observations which may have tied or exceeded existing statewide all-time record values.
National Climate Extremes Committee (NCEC)
Established in 1997, the NCEC's main goal is to assess the scientific merit of extreme climatological and meteorological events.
U.S. Climate Extremes Index (CEI)
The U.S. Climate Extremes Index (CEI) quantifies observed climate variability in temperature, precipitation, and drought within the contiguous United States.
U.S. Streaks
Stations that experience consecutive days with temperature/precipitation values which exceed or fall short of various thresholds
U.S. Wildfires
U.S. Wildfire data and statistics
U.S. Tornadoes
U.S. Tornadoes data and statistics
Residential Energy Demand Temperature Index (REDTI)
Time series plots of the Residential Energy Demand Temperature Index (REDTI) which is based on population weighted heating and cooling degree days
U.S. Wind Climatology
Monthly wind component maps for the Contiguous U.S.
Global Drought Information System (GDIS)
A tool for exploring global drought data and learning more about global drought resources, research, and education
Daily U.S. Snowfall and Snow Depth
GHCN Daily snowfall and snow depth observations
Snowfall Extremes
1-day, 2-day, and 3-day, maximum snowfall extremes for each county in the United States by State and their locations
Sea Ice and Snow Cover Extent
Global sea ice and snow cover extent values, anomlies, graphs and tables
Regional Sea Ice
Regional sea ice extent and area values, anomlies, graphs and tables
Regional Snowfall Index (RSI)
Regional characterization and ranking of high-impact snowstorms
El Niño / Southern Oscillation (ENSO)
Information on the El Niño Southern Oscillation (ENSO), a periodic fluctuation in sea surface temperature and air pressure in the equatorial Pacific Ocean
North Atlantic Oscillation (NAO)
Information on the North Atlantic Oscillation (NAO) index, which is based on the surface sea-level pressure difference between the Subtropical (Azores) High and the Subpolar Low
Pacific Decadal Oscillation (PDO)
Information on the Pacific Decadal Oscillation (PDO), often described as a long-lived El Niño-like pattern of Pacific climate variability
Arctic Oscillation (AO)
Information on the Arctic Oscillation (AO), a large scale mode of climate variability, also referred to as the Northern Hemisphere annular mode
Pacific-North American Index (PNA)
One of the most prominent modes of low-frequency variability in the Northern Hemisphere extratropics, appearing in all months except June and July
Did You Know?
A suite of notes that attempt to explain or clarify complex climate phenomena, Climate Monitoring products and methodologies, and climate system insights
Geographical Reference Maps
U.S. Climate Divisions, U.S. Climate Regions, Contiguous U.S. Major River Basins as designated by the U.S. Water Resources Council, Miscellaneous regions in the Contiguous U.S., U.S. Census Divisions, National Weather Service Regions, the major agricultural belts in the Contiguous U.S. (Corn, Cotton, Primary Corn and Soybean, Soybean, Spring Wheat, Winter Wheat)
Global Surface Temperature Anomalies
The Merged Land and Ocean Surface Temperature data are presented as anomalies (departures from a long-term average) on a five-degree by five-degree global grid. The period of record is January 1880 through the most recent month.
National Weather Service List of NCEI Resources
A list of NCEI Resources compiled for our partners at the National Weather Service (NWS) to help NWS personnel navigate NCEI data, products and services to better help service customers
Daily Weather Records
U.S. and Global daily records compiled from a subset of stations in the Global Historical Climatological Network (GHCN)
Climate Normals
Three-decade averages of climatological variables including temperature, precipitation, snowfall, heating and cooling degree days, frost/freeze dates, and growing degree days
Climate Data Record (CDR) Program
Climate records from satellite data
U.S. Climate Reference Network (USCRN)
NOAA's premiere surface reference network
Extended Reconstructed Sea Surface Temperature (ERSST)
global monthly sea surface temperature dataset derived from the International Comprehensive Ocean–Atmosphere Dataset (ICOADS)
Land-Based Station
An integrated database of climate summaries from land surface stations across the globe that have been subjected to a common suite of quality assurance reviews
Historical Observing Metadata Repository (HOMR)
NCEI's integrated station history database that provides in situ or land-based station metadata
International Best Track Archive for Climate Stewardship (IBTrACS)
Archive of tropical cyclone track data
International Comprehensive Ocean-Atmosphere Data Set (ICOADS)
Largest collection of verified surface marine observations in the world
Integrated Surface Database (ISD)
global hourly and synoptic observations compiled from numerous sources into a single common ASCII format and common data model
Gridded Climate Datasets (nClimGrid)
Spatially-interpolated 5-km gridded dataset derived from Global Historical Climatology Network (GHCN) data
NOAA Merged Land Ocean Global Surface Temperature Analysis (NOAAGlobalTemp)
Spatially gridded (5° × 5°) monthly global surface temperature dataset
Paleoclimatology Data
Paleoclimatology data derived from natural sources such as tree rings, ice cores, corals, and ocean and lake sediments