El Niño 1997
1997 was an El Niño year: 8 of 12 three-month seasons had El Niño-level ONI and 0 La Niña-level. The most extreme value was +2.4 °C in NDJ.
Episodes in 1997
ONI month by month in 1997
| DJF | JFM | FMA | MAM | AMJ | MJJ | JJA | JAS | ASO | SON | OND | NDJ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| -0.4 | -0.3 | -0.0 | +0.3 | +0.7 | +1.1 | +1.5 | +1.8 | +2.0 | +2.2 | +2.3 | +2.4 |
← 19961998 →Full ONI tableStatisticsWeekly update
Frequently asked questions
Was 1997 an El Niño year?
1997 was an El Niño year: 8 of 12 three-month seasons had El Niño-level ONI and 0 La Niña-level. The most extreme value was +2.4 °C in NDJ.
Which ENSO episodes affected 1997?
El Niño 1997-1998 (+2.4 °C)
Source: NOAA CPC Oceanic Niño Index (public domain).