El Niño Southern Oscillation (ENSO)
Explore Our Analysis Tools
El Niño and La Niña can cause the "seasonal climate" – the cumulative effects of the weather over a season – to deviate from normal at many places around the globe. The following PSD pages can be used to analyze what happened during past El Niños and La Niñas and provide a guide to what may happen in the future.
- This tool allows single or comparison plots of seasonal averaged variables in relation to El Niño and La Niña over the US and the globe.
- See what the seasonal cycle of different variables during an average El Niño and La Niña look like.
- Plot average signals based on historical data of global surface temperature and precipitation.
Composite Wintertime US Temperature and Precipitation Anomalies and Standardized Anomalies
- Given an El Niño or La Niña condition, what are the odds of getting a warm versus a cold season? A wet versus a dry season?
How Events Differ
- These plots give an indication of how similar and how different the atmosphere can be during events.