The CPC collects and produces daily and monthly data, time series, and maps for various climate parameters, such as precipitation, temperature, snow cover, and degree days for the United States, Pacific Islands, and other parts of the world. The CPC also compiles data on historic and current atmospheric and oceanic conditions, El Niņo Southern Oscillations (ENSO) and other climate patterns such as the North Atlantic and Pacific Decadal Oscillations, and stratospheric ozone and temperature.

• Oceanic and Atmospheric Monitoring & Data
  
  The CPC monitors weather & climate and compiles data on historic and current atmospheric and oceanic conditions, El Niņo Southern Oscillations (ENSO), Tropical Intraseasonal Oscillations, Arctic Oscillation, Tropical Atlantic Hurricane Potential, Tropical East-Pacific Hurricane Potential and other climate patterns such as the North Atlantic and Pacific Decadal Oscillations, and stratospheric ozone and temperature.

• United States Climate Data and Maps
  
  The CPC collects and produces daily and monthly data, time series, and maps for various climate parameters, such as precipitation, temperature, snow cover, and degree days. Precipitation maps include the U.S. Daily Precipitation Analysis. Other products available are the Palmer Drought and Crop Moisture Indices.

• Global Climate Data & Maps
  
  The CPC produces maps and time series for precipitation and surface temperatures for Africa, Asia, Europe, South and Central America, Mexico, Caribbean, Australia, and New Zealand.

• Pacific Island Climate Data and Maps
  
  The CPC collects and produces daily and monthly data, time series, and maps for precipitation and temperature.

• Monitoring Model Forecast Performance
  
  The CPC monitors the NWS/NCEP Medium Range Forecast (MRF) model forecasts, multiple member ensemble runs, and experimental parallel model runs. This monitoring activity is intended to help the CPC prediction efforts by providing the CPC forecasters with information about where and under what regimes the models perform well and not so well.