El Niño Temperature/Precipitation Anomalies 
Below are three-month averaged temperature and precipitation anomalies from November through April for weak, moderate and strong El Niño episodes since 1950. The anomalies are based on the official 1981-2010 normals. These composites are not intended to be a forecast of expected conditions. Rather, they use historical data to highlight locations where ENSO can potentially impact temperature and precipitation.
El Niño: Temperature Anomalies
|
Weak Episodes |
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 |
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|
Moderate-Strong Episodes |
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| November - January | December - February | January - March | February - April |
El Niño: Precipitation Anomalies
|
Weak Episodes |
 |
 |
 |
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|
Moderate-Strong Episodes |
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 |
 |
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| November - January | December - February | January - March | February - April |
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