ASOS Temperature Departure and Degree Day Maps
Daily maps of temperature and precipitation versus normal for several hundred U.S. automated stations, including Alaska and Hawaii. Users can loop these images through a multi-day animation.
Climate at a Glance
Comparisons of meteorological local, state, regional, national, and global data in historical perspective to determine trends.
Daily Weather Records
U.S. and Global daily records compiled from a subset of stations in the Global Historical Climatological Network (GHCN).
Monthly National Climate Report
An analysis of national temperatures and precipitation each month, placing the data into a historical perspective.
National Temperature and Precipitation Maps
1-Month, 3-Month, 6-Month, 12-Month, and Year-to-Date National, Divisional, Statewide, and Regional Temperature and Precipitation Maps.
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.
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.
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 Climate Extremes Index (CEI)
The U.S. Climate Extremes Index (CEI) quantifies observed climate changes in temperature, precipitation, and drought within the contiguous United States.
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.
U.S. Streaks
Stations that experience consecutive days with temperature/precipitation values which exceed or fall short of various thresholds.
Weekly Divisional Products
Maps of weekly temperature and precipitation anomalies, and short term Palmer drought indices are produced from CPC data.
Climate at a Glance
Comparisons of meteorological local, state, regional, national, and global data in historical perspective to determine trends.
Daily Weather Records
U.S. and Global daily records compiled from a subset of stations in the Global Historical Climatological Network (GHCN).
GHCN Gridded Products
GHCN Monthly Global Gridded Temperature and Precipitation Products.
Microwave Sounding Unit
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.
Monthly Global Climate Report
An analysis of national temperatures and precipitation each month, placing the data into a historical perspective.
Monthly Regional Analysis
A summary of global regional temperature anomalies, placing the data into a historical perspective.