El Niño 2001
2001 was a mostly neutral year: 0 of 12 three-month seasons had El Niño-level ONI and 2 La Niña-level. The most extreme value was -0.8 °C in DJF.
Episodes in 2001
ONI month by month in 2001
| DJF | JFM | FMA | MAM | AMJ | MJJ | JJA | JAS | ASO | SON | OND | NDJ |
|---|---|---|---|---|---|---|---|---|---|---|---|
| -0.8 | -0.5 | -0.4 | -0.3 | -0.2 | -0.1 | -0.1 | -0.1 | -0.1 | -0.3 | -0.3 | -0.3 |
← 20002002 →Full ONI tableStatisticsWeekly update
Frequently asked questions
Was 2001 an El Niño year?
2001 was a mostly neutral year: 0 of 12 three-month seasons had El Niño-level ONI and 2 La Niña-level. The most extreme value was -0.8 °C in DJF.
Which ENSO episodes affected 2001?
La Niña 2000-2001 (-0.8 °C)
Source: NOAA CPC Oceanic Niño Index (public domain).