El Niño 2015
2015 was an El Niño year: 12 of 12 three-month seasons had El Niño-level ONI and 0 La Niña-level. The most extreme value was +2.6 °C in NDJ.
Episodes in 2015
ONI month by month in 2015
| DJF | JFM | FMA | MAM | AMJ | MJJ | JJA | JAS | ASO | SON | OND | NDJ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| +0.7 | +0.7 | +0.7 | +0.9 | +1.0 | +1.2 | +1.4 | +1.7 | +2.0 | +2.3 | +2.5 | +2.6 |
← 20142016 →Full ONI tableStatisticsWeekly update
Frequently asked questions
Was 2015 an El Niño year?
2015 was an El Niño year: 12 of 12 three-month seasons had El Niño-level ONI and 0 La Niña-level. The most extreme value was +2.6 °C in NDJ.
Which ENSO episodes affected 2015?
El Niño 2014-2016 (+2.6 °C)
Source: NOAA CPC Oceanic Niño Index (public domain).