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HOME > El Niño Monitoring > Historical El Niño and La Niña Events

Historical El Niño and La Niña Events

The definition of El Niño(La Niña) is such that the 5-month running mean Sea Surface Temperature (SST) deviation for NINO.3(5°S-5°N,150°W-90°W) continues 0.5°C(-0.5°C) or higher (lower) for 6 consecutive months or longer. The NINO.3 SST deviation is defined as deviation from the latest sliding 30 year. The SST data set is COBE-SST made by JMA.
Winter, spring, summer and autumn mean December to February, March to May, June to August, and September to November, respectively.

El Niño La Niña
summer 1949 - summer 1950
spring 1951 - winter 1951/52
spring 1953 - autumn 1953 spring 1954 - winter 1955/56
spring 1957 - spring 1958
summer 1963 - winter 1963/64 spring 1964 - winter 1964/65
spring 1965 - winter 1965/66 autumn 1967 - spring 1968
autumn 1968 - winter 1969/70 spring 1970 - winter 1971/72
spring 1972 - spring 1973 summer 1973 - spring 1974
spring 1975 - spring 1976
summer 1976 - spring 1977
spring 1982 - summer 1983 summer 1984 - autumn 1985
autumn 1986 - winter 1987/88 spring 1988 - spring 1989
spring 1991 - summer 1992 summer 1995 - winter 1995/96
spring 1997 - spring 1998 summer 1998 - spring 2000
summer 2002 - winter 2002/03 autumn 2005 - spring 2006
spring 2007 - spring 2008
summer 2009 - spring 2010 summer 2010 - spring 2011
summer 2014 - spring 2016

Time series of NINO.3 SST deviation

Thin lines indicates monthly mean values, and smoothed thick curves represents five month running mean values.
Red shaded areas denote El Niño periods, and blue, La Niña ones.


Nino.3

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