NCDC is the world’s largest active archive of weather data. NCDC produces numerous climate publications and responds to data requests from all over the world. NCDC operates the World Data Center for Meteorology which is co-located at NCDC in Asheville, North Carolina, and the World Data Center for Paleoclimatology which is located in Boulder, Colorado.

NCDC supports a three tier national climate services support program the partners include: NCDC, Regional Climate Centers, and State Climatologists.

The National Climatic Data Center (NCDC) is the Nation’s Scorekeeper in terms of addressing severe weather events in their historical perspective. As part of its responsibility of “monitoring and assessing the climate,” NCDC tracks and evaluates climate events in the U.S. and globally that have great economic and societal impacts. NCDC is frequently called upon to provide summaries of global and US temperature and precipitation trends, extremes, and comparisons in their historical perspective.