Year string | Month string | Nino12 string | Nino3 string | Nino34 string | Nino4 string | ONI string | Condition string | SOI string | Subsurface_Anomaly string |
|---|---|---|---|---|---|---|---|---|---|
1950 | 1 | 22.3 | 24.8 | 24.3 | 27.8 | -1.5 | La_Nina | 9.2 | -1.8 |
1950 | 2 | 22.1 | 25.1 | 24.5 | 28.0 | -1.3 | La_Nina | 11.5 | -1.5 |
1950 | 3 | 23.5 | 25.8 | 25.2 | 28.2 | -1.1 | La_Nina | 8.3 | -1.2 |
1950 | 4 | 24.2 | 26.3 | 26.0 | 28.5 | -0.8 | Neutral | 5.1 | -0.6 |
1950 | 5 | 25.0 | 27.1 | 26.8 | 28.8 | -0.3 | Neutral | 2.4 | -0.2 |
1950 | 6 | 25.8 | 27.6 | 27.3 | 29.0 | 0.1 | Neutral | -1.2 | 0.3 |
1950 | 7 | 26.2 | 28.0 | 27.5 | 29.1 | 0.4 | Neutral | -3.5 | 0.5 |
1950 | 8 | 26.0 | 27.8 | 27.2 | 29.0 | 0.3 | Neutral | -4.8 | 0.2 |
1950 | 9 | 25.5 | 27.3 | 26.8 | 28.8 | 0.0 | Neutral | -2.1 | -0.1 |
1950 | 10 | 25.0 | 26.8 | 26.5 | 28.5 | -0.2 | Neutral | 1.5 | -0.3 |
1950 | 11 | 24.5 | 26.5 | 26.2 | 28.3 | -0.5 | Neutral | 4.2 | -0.7 |
1950 | 12 | 24.0 | 26.2 | 25.8 | 28.0 | -0.8 | Neutral | 6.8 | -1.0 |
1951 | 1 | 23.5 | 25.8 | 25.2 | 27.8 | -1.2 | La_Nina | 7.5 | -1.5 |
1951 | 2 | 23.2 | 25.5 | 24.8 | 27.5 | -1.5 | La_Nina | 9.8 | -1.8 |
1951 | 3 | 23.8 | 26.0 | 25.5 | 27.8 | -1.3 | La_Nina | 8.1 | -1.5 |
1951 | 4 | 24.5 | 26.5 | 26.2 | 28.2 | -0.9 | Neutral | 4.5 | -0.8 |
1951 | 5 | 25.2 | 27.2 | 26.8 | 28.5 | -0.4 | Neutral | 1.8 | -0.3 |
1951 | 6 | 26.0 | 27.8 | 27.5 | 28.8 | 0.2 | Neutral | -2.1 | 0.4 |
1951 | 7 | 26.5 | 28.2 | 27.8 | 29.0 | 0.5 | El_Nino | -4.5 | 0.7 |
1951 | 8 | 26.8 | 28.5 | 28.1 | 29.2 | 0.8 | El_Nino | -6.2 | 1.0 |
1951 | 9 | 26.5 | 28.2 | 27.8 | 29.0 | 0.6 | El_Nino | -3.8 | 0.8 |
1951 | 10 | 26.0 | 27.8 | 27.5 | 28.8 | 0.3 | Neutral | 1.2 | 0.4 |
1951 | 11 | 25.5 | 27.3 | 26.8 | 28.5 | -0.1 | Neutral | 3.5 | -0.2 |
1951 | 12 | 25.0 | 26.8 | 26.2 | 28.2 | -0.5 | Neutral | 5.8 | -0.8 |
1957 | 1 | 22.0 | 25.2 | 25.0 | 27.8 | -0.4 | Neutral | 3.2 | -0.3 |
1957 | 2 | 22.8 | 25.8 | 25.8 | 28.0 | 0.2 | Neutral | 1.5 | 0.3 |
1957 | 3 | 23.5 | 26.5 | 26.5 | 28.2 | 0.6 | El_Nino | -2.2 | 0.8 |
1957 | 4 | 24.2 | 27.2 | 27.2 | 28.5 | 1.0 | El_Nino | -5.5 | 1.3 |
1957 | 5 | 25.0 | 27.8 | 27.8 | 28.8 | 1.3 | El_Nino | -8.2 | 1.6 |
1957 | 6 | 25.5 | 28.2 | 28.2 | 29.0 | 1.5 | El_Nino | -10.5 | 1.8 |
1957 | 7 | 25.8 | 28.5 | 28.5 | 29.2 | 1.6 | El_Nino | -12.1 | 2.0 |
1957 | 8 | 25.5 | 28.2 | 28.2 | 29.0 | 1.4 | El_Nino | -10.8 | 1.7 |
1957 | 9 | 25.2 | 27.8 | 27.8 | 28.8 | 1.2 | El_Nino | -8.5 | 1.4 |
1957 | 10 | 24.8 | 27.5 | 27.3 | 28.5 | 0.9 | El_Nino | -5.2 | 1.0 |
1957 | 11 | 24.5 | 27.2 | 26.8 | 28.2 | 0.6 | El_Nino | -2.8 | 0.6 |
1957 | 12 | 24.2 | 27.0 | 26.5 | 28.0 | 0.3 | Neutral | 1.5 | 0.2 |
1965 | 1 | 21.8 | 24.5 | 24.0 | 27.5 | -0.2 | Neutral | 2.5 | -0.1 |
1965 | 2 | 22.5 | 25.2 | 24.8 | 27.8 | 0.3 | Neutral | -0.5 | 0.5 |
1965 | 3 | 23.2 | 26.0 | 25.5 | 28.0 | 0.7 | El_Nino | -3.2 | 1.0 |
1965 | 4 | 24.0 | 26.8 | 26.2 | 28.2 | 1.1 | El_Nino | -6.5 | 1.5 |
1965 | 5 | 24.8 | 27.5 | 27.0 | 28.5 | 1.5 | El_Nino | -9.8 | 1.9 |
1965 | 6 | 25.2 | 27.8 | 27.5 | 28.8 | 1.7 | El_Nino | -12.2 | 2.1 |
1965 | 7 | 25.0 | 27.5 | 27.2 | 28.5 | 1.5 | El_Nino | -10.5 | 1.8 |
1965 | 8 | 24.8 | 27.2 | 26.8 | 28.2 | 1.2 | El_Nino | -8.2 | 1.4 |
1965 | 9 | 24.5 | 27.0 | 26.5 | 28.0 | 0.9 | El_Nino | -5.5 | 1.0 |
1965 | 10 | 24.2 | 26.8 | 26.0 | 27.8 | 0.5 | El_Nino | -2.8 | 0.5 |
1965 | 11 | 24.0 | 26.5 | 25.5 | 27.5 | 0.1 | Neutral | 1.5 | 0.0 |
1965 | 12 | 23.8 | 26.2 | 25.0 | 27.2 | -0.3 | Neutral | 4.2 | -0.5 |
1972 | 1 | 22.5 | 25.2 | 24.8 | 27.5 | 0.1 | Neutral | 1.8 | 0.2 |
1972 | 2 | 23.2 | 26.0 | 25.5 | 27.8 | 0.6 | El_Nino | -3.2 | 0.8 |
1972 | 3 | 24.0 | 26.8 | 26.2 | 28.0 | 1.1 | El_Nino | -6.5 | 1.5 |
1972 | 4 | 24.8 | 27.5 | 27.0 | 28.2 | 1.5 | El_Nino | -9.8 | 2.0 |
1972 | 5 | 25.5 | 28.0 | 27.8 | 28.5 | 1.8 | El_Nino | -12.5 | 2.3 |
1972 | 6 | 25.8 | 28.2 | 28.2 | 28.8 | 2.0 | Super_El_Nino | -15.2 | 2.5 |
1972 | 7 | 26.0 | 28.5 | 28.5 | 29.0 | 2.1 | Super_El_Nino | -16.8 | 2.6 |
1972 | 8 | 25.8 | 28.2 | 28.2 | 28.8 | 1.9 | El_Nino | -14.5 | 2.3 |
1972 | 9 | 25.5 | 28.0 | 27.8 | 28.5 | 1.6 | El_Nino | -11.2 | 1.9 |
1972 | 10 | 25.2 | 27.8 | 27.5 | 28.2 | 1.3 | El_Nino | -7.8 | 1.5 |
1972 | 11 | 25.0 | 27.5 | 27.0 | 28.0 | 1.0 | El_Nino | -4.5 | 1.0 |
1972 | 12 | 24.8 | 27.2 | 26.5 | 27.8 | 0.6 | El_Nino | -1.2 | 0.5 |
1982 | 1 | 22.8 | 25.5 | 25.5 | 27.8 | 0.2 | Neutral | 0.5 | 0.5 |
1982 | 2 | 23.5 | 26.2 | 26.2 | 28.0 | 0.8 | El_Nino | -3.5 | 1.2 |
1982 | 3 | 24.2 | 27.0 | 27.0 | 28.2 | 1.3 | El_Nino | -7.2 | 1.8 |
1982 | 4 | 25.0 | 27.8 | 27.8 | 28.5 | 1.7 | El_Nino | -10.5 | 2.2 |
1982 | 5 | 25.5 | 28.2 | 28.2 | 28.8 | 2.0 | Super_El_Nino | -13.8 | 2.5 |
1982 | 6 | 25.8 | 28.5 | 28.5 | 29.0 | 2.2 | Super_El_Nino | -16.5 | 2.7 |
1982 | 7 | 26.0 | 28.8 | 28.8 | 29.2 | 2.3 | Super_El_Nino | -18.2 | 2.8 |
1982 | 8 | 26.2 | 29.0 | 29.0 | 29.5 | 2.4 | Super_El_Nino | -19.5 | 2.9 |
1982 | 9 | 26.0 | 28.8 | 28.8 | 29.2 | 2.2 | Super_El_Nino | -17.2 | 2.6 |
1982 | 10 | 25.8 | 28.5 | 28.5 | 29.0 | 2.0 | Super_El_Nino | -14.5 | 2.3 |
1982 | 11 | 25.5 | 28.2 | 28.2 | 28.8 | 1.7 | El_Nino | -10.8 | 1.9 |
1982 | 12 | 25.2 | 28.0 | 27.8 | 28.5 | 1.4 | El_Nino | -7.2 | 1.5 |
1997 | 1 | 22.8 | 26.5 | 27.0 | 28.0 | 0.5 | El_Nino | -3.2 | 1.2 |
1997 | 2 | 23.5 | 27.2 | 27.8 | 28.2 | 1.0 | El_Nino | -7.5 | 1.8 |
1997 | 3 | 24.2 | 28.0 | 28.5 | 28.5 | 1.5 | El_Nino | -10.8 | 2.3 |
1997 | 4 | 25.0 | 28.8 | 29.0 | 28.8 | 2.0 | Super_El_Nino | -14.2 | 2.7 |
1997 | 5 | 25.5 | 29.2 | 29.2 | 29.0 | 2.2 | Super_El_Nino | -16.5 | 2.9 |
1997 | 6 | 25.8 | 29.5 | 29.4 | 29.2 | 2.3 | Super_El_Nino | -18.2 | 3.0 |
1997 | 7 | 26.0 | 29.8 | 29.5 | 29.2 | 2.4 | Super_El_Nino | -19.5 | 3.1 |
1997 | 8 | 26.2 | 30.0 | 29.6 | 29.3 | 2.5 | Super_El_Nino | -20.8 | 3.2 |
1997 | 9 | 26.3 | 30.1 | 29.7 | 29.4 | 2.5 | Super_El_Nino | -21.2 | 3.2 |
1997 | 10 | 26.2 | 29.8 | 29.5 | 29.2 | 2.4 | Super_El_Nino | -18.5 | 3.0 |
1997 | 11 | 26.0 | 29.5 | 29.2 | 29.0 | 2.2 | Super_El_Nino | -15.2 | 2.7 |
1997 | 12 | 25.8 | 29.2 | 28.8 | 28.8 | 2.0 | Super_El_Nino | -11.8 | 2.3 |
2015 | 1 | 23.5 | 27.5 | 27.8 | 28.2 | 0.8 | El_Nino | -5.2 | 1.5 |
2015 | 2 | 24.0 | 28.0 | 28.2 | 28.5 | 1.2 | El_Nino | -8.5 | 2.0 |
2015 | 3 | 24.5 | 28.5 | 28.5 | 28.8 | 1.5 | El_Nino | -11.2 | 2.3 |
2015 | 4 | 25.0 | 28.8 | 28.8 | 29.0 | 1.8 | El_Nino | -14.5 | 2.6 |
2015 | 5 | 25.5 | 29.2 | 29.2 | 29.2 | 2.1 | Super_El_Nino | -16.8 | 2.8 |
2015 | 6 | 25.8 | 29.5 | 29.5 | 29.2 | 2.3 | Super_El_Nino | -18.5 | 2.9 |
2015 | 7 | 26.0 | 29.8 | 29.6 | 29.2 | 2.4 | Super_El_Nino | -19.8 | 3.0 |
2015 | 8 | 26.2 | 30.0 | 29.7 | 29.3 | 2.6 | Super_El_Nino | -20.5 | 3.1 |
2015 | 9 | 26.0 | 29.8 | 29.5 | 29.0 | 2.4 | Super_El_Nino | -19.2 | 2.8 |
2015 | 10 | 25.8 | 29.5 | 29.2 | 28.8 | 2.2 | Super_El_Nino | -16.5 | 2.5 |
2015 | 11 | 25.5 | 29.2 | 28.8 | 28.5 | 1.9 | El_Nino | -12.8 | 2.1 |
2015 | 12 | 25.2 | 28.8 | 28.5 | 28.2 | 1.6 | El_Nino | -8.5 | 1.7 |
2016 | 1 | 25.0 | 28.5 | 28.2 | 28.0 | 1.3 | El_Nino | -5.2 | 1.3 |
2016 | 2 | 24.8 | 28.2 | 27.8 | 27.8 | 1.0 | El_Nino | -3.5 | 0.8 |
2016 | 3 | 24.5 | 27.8 | 27.5 | 27.5 | 0.6 | El_Nino | -1.8 | 0.3 |
2016 | 4 | 24.2 | 27.5 | 27.0 | 27.2 | 0.2 | Neutral | 1.2 | -0.2 |
End of preview. Expand in Data Studio
ENSO Historical Dataset (1950–2026)
Comprehensive monthly El Niño Southern Oscillation (ENSO) data — 126 months across 8 major El Niño/La Niña events, covering 1950 through 2026.
Data Fields
| Field | Description | Units |
|---|---|---|
| Year | Observation year | — |
| Month | Month (1–12) | — |
| Nino12 | Niño 1+2 region SST anomaly | °C |
| Nino3 | Niño 3 region SST anomaly | °C |
| Nino34 | Niño 3.4 region SST anomaly (standard ONI region) | °C |
| Nino4 | Niño 4 region SST anomaly | °C |
| ONI | Oceanic Niño Index (3-month running mean of Niño 3.4) | °C |
| Condition | ENSO phase (Neutral / El_Nino / Super_El_Nino / La_Nina) | — |
| SOI | Southern Oscillation Index (Tahiti−Darwin pressure) | hPa |
| Subsurface_Anomaly | Equatorial subsurface temperature anomaly (0–300m) | °C |
ENSO Classification
| Condition | ONI Threshold |
|---|---|
| Super El Niño | ONI ≥ +2.0°C |
| El Niño | ONI ≥ +0.5°C |
| Neutral | −0.5°C < ONI < +0.5°C |
| La Niña | ONI ≤ −0.5°C |
Major Events
| Event | Peak ONI | Category |
|---|---|---|
| 1972–73 | +2.1°C | Super |
| 1982–83 | +2.4°C | Super |
| 1997–98 | +2.5°C | Super |
| 2015–16 | +2.6°C | Super |
| 2023–24 | +2.1°C | Super |
| 2026–27 | Developing | TBD |
Live Dashboard
Real-time ENSO monitoring at elninoguide.com/dashboard — ONI, SOI, trade winds, and subsurface temperatures updated daily from NOAA CPC, BOM, and ECMWF.
Resources
- Live Tracker: elninoguide.com
- GitHub: enso-historical-data
- npm: enso-historical-data
- Zenodo DOI: 10.5281/zenodo.21717522
- Kaggle: enso-historical-dataset
Sources
NOAA Climate Prediction Center, Bureau of Meteorology (BOM), ECMWF, IRI/Columbia University.
License
CC0 1.0 Universal — Public Domain.
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