El Niño 1977
1977 was an El Niño year: 5 of 12 three-month seasons had El Niño-level ONI and 0 La Niña-level. The most extreme value was +0.8 °C in OND.
Episodes in 1977
ONI month by month in 1977
| DJF | JFM | FMA | MAM | AMJ | MJJ | JJA | JAS | ASO | SON | OND | NDJ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| +0.7 | +0.7 | +0.3 | +0.3 | +0.3 | +0.5 | +0.4 | +0.3 | +0.5 | +0.7 | +0.8 | +0.8 |
← 19761978 →Full ONI tableStatisticsWeekly update
Frequently asked questions
Was 1977 an El Niño year?
1977 was an El Niño year: 5 of 12 three-month seasons had El Niño-level ONI and 0 La Niña-level. The most extreme value was +0.8 °C in OND.
Which ENSO episodes affected 1977?
El Niño 1976-1977 (+0.8 °C), El Niño 1977-1978 (+0.8 °C)
Source: NOAA CPC Oceanic Niño Index (public domain).