El Niño 1951-1952
El Niño 1951-1952 lasted about 10 months, from May–Jul 1951 to Dec–Feb 1952. The Oceanic Niño Index peaked at +1.0 °C in SON 1951, a moderate El Niño, ranked #15 of 23 since 1950.
StartMJJ 1951May–Jul
EndDJF 1952Dec–Feb
Duration10 months8 seasons
Peak ONI+1.0 °CSON 1951
Average ONI+0.79 °Cduring the episode
StrengthModerate#15 / 23
ONI before, during and after El Niño 1951-1952
Season by season
| Season | Year | ONI | Niño 3.4 temp. |
|---|---|---|---|
| MJJ May–Jul | 1951 | +0.5 °C | 27.72 °C |
| JJA Jun–Aug | 1951 | +0.7 °C | 27.57 °C |
| JAS Jul–Sep | 1951 | +0.9 °C | 27.41 °C |
| ASO Aug–Oct | 1951 | +1.0 °C | 27.34 °C |
| SON Sep–Nov | 1951 | +1.0 °C | 27.25 °C |
| OND Oct–Dec | 1951 | +1.0 °C | 27.18 °C |
| NDJ Nov–Jan | 1951 | +0.7 °C | 26.91 °C |
| DJF Dec–Feb | 1952 | +0.5 °C | 26.86 °C |
Compare with other episodes
Frequently asked questions
When did El Niño 1951-1952 start and end?
It started in MJJ 1951 and ended in DJF 1952, about 10 months.
How strong was El Niño 1951-1952?
Its peak ONI was +1.0 °C (SON 1951), classified as moderate. It ranks #15 among 23 El Niño episodes since 1950.
How does it compare with the current El Niño?
The current event (El Niño 2026) has reached +2.5 °C so far, above the +1.0 °C peak of El Niño 1951-1952.
Episodes are computed from NOAA's Oceanic Niño Index (ERSSTv5) with the standard rule: five or more consecutive overlapping seasons at or beyond ±0.5 °C. Free to cite with a link to elninoforecast.com.