The Climate Prediction Center (CPC) produces maps of the United States that show probability of precipitation and temperature being above or below normal based on data from previous El Niño Southern Oscillation (ENSO) events.

• U.S. Temperature, Precipitation, and Snowfall Impacts based on historical ENSO episodes (seasonal)

• Previous ENSO Events - Previous El Niño and La Niña years and intensity of event.

• El Niño/La Niña Home Page