El Niño 1964
1964 was an La Niña year: 2 of 12 three-month seasons had El Niño-level ONI and 8 La Niña-level. The most extreme value was +0.9 °C in DJF.
Episodes in 1964
ONI month by month in 1964
| DJF | JFM | FMA | MAM | AMJ | MJJ | JJA | JAS | ASO | SON | OND | NDJ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| +0.9 | +0.5 | +0.1 | -0.3 | -0.6 | -0.7 | -0.7 | -0.7 | -0.7 | -0.8 | -0.8 | -0.8 |
← 19631965 →Full ONI tableStatisticsWeekly update
Frequently asked questions
Was 1964 an El Niño year?
1964 was an La Niña year: 2 of 12 three-month seasons had El Niño-level ONI and 8 La Niña-level. The most extreme value was +0.9 °C in DJF.
Which ENSO episodes affected 1964?
El Niño 1963-1964 (+1.2 °C), La Niña 1964-1965 (-0.8 °C)
Source: NOAA CPC Oceanic Niño Index (public domain).