% Índice Costero El Niño (ICEN; ENFEN, 2024) % Versión oficial %Referencia %ENFEN (2024). Definición operacional de los eventos El Niño Costero y La Niña Costera en el Perú. Nota Técnica. % yy mm ICEN 1950 1 -0.75 1950 2 -1.07 1950 3 -1.25 1950 4 -1.18 1950 5 -1.22 1950 6 -1.05 1950 7 -0.80 1950 8 -0.67 1950 9 -0.49 1950 10 -0.77 1950 11 -0.71 1950 12 -0.53 1951 1 -0.30 1951 2 -0.23 1951 3 -0.18 1951 4 0.26 1951 5 1.09 1951 6 1.84 1951 7 2.13 1951 8 1.74 1951 9 1.32 1951 10 1.16 1951 11 1.00 1951 12 0.70 1952 1 0.41 1952 2 0.25 1952 3 -0.07 1952 4 -0.28 1952 5 -0.46 1952 6 -0.45 1952 7 -0.56 1952 8 -0.70 1952 9 -0.54 1952 10 -0.44 1952 11 -0.13 1952 12 -0.06 1953 1 0.23 1953 2 0.63 1953 3 1.25 1953 4 1.60 1953 5 1.54 1953 6 1.11 1953 7 0.79 1953 8 0.71 1953 9 0.61 1953 10 0.51 1953 11 0.22 1953 12 -0.35 1954 1 -0.75 1954 2 -1.00 1954 3 -1.42 1954 4 -1.93 1954 5 -2.23 1954 6 -2.09 1954 7 -1.70 1954 8 -1.54 1954 9 -1.31 1954 10 -1.23 1954 11 -1.13 1954 12 -0.72 1955 1 -0.65 1955 2 -0.64 1955 3 -0.79 1955 4 -1.06 1955 5 -1.16 1955 6 -1.17 1955 7 -1.01 1955 8 -0.94 1955 9 -1.11 1955 10 -1.20 1955 11 -1.26 1955 12 -1.10 1956 1 -0.93 1956 2 -0.61 1956 3 -0.51 1956 4 -0.42 1956 5 -0.41 1956 6 -0.04 1956 7 0.19 1956 8 0.08 1956 9 -0.33 1956 10 -0.54 1956 11 -0.64 1956 12 -0.83 1957 1 -0.51 1957 2 0.21 1957 3 1.18 1957 4 2.05 1957 5 2.53 1957 6 2.81 1957 7 2.38 1957 8 1.92 1957 9 1.47 1957 10 1.25 1957 11 1.16 1957 12 0.97 1958 1 0.82 1958 2 0.77 1958 3 1.01 1958 4 1.05 1958 5 0.95 1958 6 0.77 1958 7 0.56 1958 8 0.35 1958 9 0.22 1958 10 0.22 1958 11 0.19 1958 12 -0.07 1959 1 -0.15 1959 2 0.15 1959 3 0.52 1959 4 0.64 1959 5 0.38 1959 6 0.19 1959 7 -0.05 1959 8 -0.13 1959 9 -0.09 1959 10 0.28 1959 11 0.41 1959 12 0.36 1960 1 0.14 1960 2 0.15 1960 3 -0.07 1960 4 -0.20 1960 5 -0.52 1960 6 -0.55 1960 7 -0.56 1960 8 -0.27 1960 9 -0.18 1960 10 -0.05 1960 11 -0.05 1960 12 0.25 1961 1 0.59 1961 2 0.49 1961 3 0.25 1961 4 -0.14 1961 5 -0.16 1961 6 -0.38 1961 7 -0.50 1961 8 -0.61 1961 9 -0.46 1961 10 -0.29 1961 11 -0.20 1961 12 -0.12 1962 1 -0.17 1962 2 -0.60 1962 3 -1.14 1962 4 -1.34 1962 5 -1.01 1962 6 -0.63 1962 7 -0.43 1962 8 -0.28 1962 9 -0.24 1962 10 -0.27 1962 11 -0.38 1962 12 -0.30 1963 1 -0.31 1963 2 -0.21 1963 3 -0.33 1963 4 -0.18 1963 5 -0.15 1963 6 0.17 1963 7 0.36 1963 8 0.61 1963 9 0.70 1963 10 0.59 1963 11 0.48 1963 12 0.25 1964 1 -0.14 1964 2 -0.52 1964 3 -0.75 1964 4 -1.14 1964 5 -1.24 1964 6 -1.34 1964 7 -1.05 1964 8 -0.90 1964 9 -0.79 1964 10 -0.55 1964 11 -0.58 1964 12 -0.36 1965 1 -0.17 1965 2 0.26 1965 3 0.94 1965 4 1.62 1965 5 2.10 1965 6 2.03 1965 7 1.93 1965 8 1.59 1965 9 1.35 1965 10 1.04 1965 11 1.03 1965 12 1.01 1966 1 0.64 1966 2 0.02 1966 3 -0.65 1966 4 -1.00 1966 5 -1.03 1966 6 -0.93 1966 7 -0.80 1966 8 -0.60 1966 9 -0.34 1966 10 -0.26 1966 11 -0.17 1966 12 -0.32 1967 1 -0.18 1967 2 -0.30 1967 3 -0.21 1967 4 -0.27 1967 5 -0.27 1967 6 -0.40 1967 7 -0.67 1967 8 -0.95 1967 9 -1.14 1967 10 -1.24 1967 11 -1.24 1967 12 -1.21 1968 1 -1.05 1968 2 -0.95 1968 3 -1.02 1968 4 -1.20 1968 5 -1.21 1968 6 -0.89 1968 7 -0.35 1968 8 0.27 1968 9 0.51 1968 10 0.56 1968 11 0.51 1968 12 0.49 1969 1 0.30 1969 2 0.38 1969 3 0.72 1969 4 1.43 1969 5 1.64 1969 6 1.44 1969 7 0.91 1969 8 0.58 1969 9 0.70 1969 10 0.93 1969 11 1.13 1969 12 1.05 1970 1 0.77 1970 2 0.18 1970 3 -0.30 1970 4 -0.75 1970 5 -1.00 1970 6 -1.51 1970 7 -1.57 1970 8 -1.41 1970 9 -0.94 1970 10 -0.72 1970 11 -0.62 1970 12 -0.76 1971 1 -0.91 1971 2 -1.01 1971 3 -0.78 1971 4 -0.65 1971 5 -0.72 1971 6 -0.84 1971 7 -0.88 1971 8 -0.79 1971 9 -0.85 1971 10 -0.72 1971 11 -0.67 1971 12 -0.35 1972 1 0.14 1972 2 0.73 1972 3 1.04 1972 4 1.11 1972 5 1.47 1972 6 1.93 1972 7 2.45 1972 8 2.25 1972 9 2.06 1972 10 1.70 1972 11 1.94 1972 12 1.91 1973 1 1.58 1973 2 0.80 1973 3 -0.02 1973 4 -0.55 1973 5 -0.93 1973 6 -0.98 1973 7 -1.10 1973 8 -1.01 1973 9 -0.94 1973 10 -0.80 1973 11 -0.77 1973 12 -0.84 1974 1 -0.85 1974 2 -0.67 1974 3 -0.39 1974 4 -0.01 1974 5 -0.03 1974 6 -0.09 1974 7 -0.22 1974 8 -0.19 1974 9 -0.37 1974 10 -0.58 1974 11 -0.88 1974 12 -0.85 1975 1 -0.83 1975 2 -0.37 1975 3 -0.02 1975 4 0.03 1975 5 -0.37 1975 6 -0.68 1975 7 -0.72 1975 8 -0.78 1975 9 -1.10 1975 10 -1.56 1975 11 -1.69 1975 12 -1.44 1976 1 -0.84 1976 2 -0.30 1976 3 0.15 1976 4 0.63 1976 5 1.23 1976 6 1.73 1976 7 1.85 1976 8 1.62 1976 9 1.24 1976 10 0.95 1976 11 0.77 1976 12 0.66 1977 1 0.43 1977 2 0.25 1977 3 0.01 1977 4 -0.15 1977 5 -0.22 1977 6 -0.18 1977 7 -0.24 1977 8 -0.44 1977 9 -0.45 1977 10 -0.34 1977 11 -0.19 1977 12 -0.19 1978 1 -0.10 1978 2 -0.21 1978 3 -0.31 1978 4 -0.56 1978 5 -0.58 1978 6 -0.62 1978 7 -0.73 1978 8 -0.67 1978 9 -0.69 1978 10 -0.29 1978 11 0.00 1978 12 0.35 1979 1 0.25 1979 2 0.13 1979 3 0.15 1979 4 0.33 1979 5 0.54 1979 6 0.42 1979 7 0.38 1979 8 0.43 1979 9 0.65 1979 10 0.68 1979 11 0.48 1979 12 0.22 1980 1 0.11 1980 2 0.24 1980 3 0.34 1980 4 0.37 1980 5 0.22 1980 6 -0.05 1980 7 -0.13 1980 8 -0.15 1980 9 -0.05 1980 10 -0.06 1980 11 -0.13 1980 12 -0.53 1981 1 -0.74 1981 2 -0.74 1981 3 -0.48 1981 4 -0.34 1981 5 -0.38 1981 6 -0.41 1981 7 -0.55 1981 8 -0.63 1981 9 -0.56 1981 10 -0.40 1981 11 -0.24 1981 12 -0.14 1982 1 -0.17 1982 2 -0.45 1982 3 -0.62 1982 4 -0.45 1982 5 0.00 1982 6 0.45 1982 7 0.80 1982 8 1.16 1982 9 1.58 1982 10 2.26 1982 11 2.83 1982 12 3.11 1983 1 2.85 1983 2 2.63 1983 3 2.87 1983 4 3.48 1983 5 4.13 1983 6 4.32 1983 7 3.99 1983 8 3.00 1983 9 2.03 1983 10 1.13 1983 11 0.70 1983 12 0.24 1984 1 -0.11 1984 2 -0.38 1984 3 -0.32 1984 4 -0.39 1984 5 -0.43 1984 6 -0.54 1984 7 -0.38 1984 8 -0.12 1984 9 -0.10 1984 10 -0.02 1984 11 -0.18 1984 12 -0.27 1985 1 -0.61 1985 2 -0.69 1985 3 -0.87 1985 4 -1.03 1985 5 -1.18 1985 6 -1.16 1985 7 -0.97 1985 8 -0.90 1985 9 -0.77 1985 10 -0.69 1985 11 -0.53 1985 12 -0.26 1986 1 0.00 1986 2 -0.11 1986 3 -0.41 1986 4 -0.79 1986 5 -0.92 1986 6 -0.82 1986 7 -0.50 1986 8 -0.09 1986 9 0.17 1986 10 0.30 1986 11 0.42 1986 12 0.69 1987 1 0.97 1987 2 1.30 1987 3 1.48 1987 4 1.63 1987 5 1.46 1987 6 1.27 1987 7 1.00 1987 8 1.03 1987 9 1.18 1987 10 1.27 1987 11 1.10 1987 12 0.65 1988 1 0.24 1988 2 -0.20 1988 3 -0.50 1988 4 -0.84 1988 5 -1.14 1988 6 -1.33 1988 7 -1.44 1988 8 -1.33 1988 9 -1.26 1988 10 -1.11 1988 11 -0.95 1988 12 -0.63 1989 1 -0.26 1989 2 0.00 1989 3 0.05 1989 4 -0.35 1989 5 -0.68 1989 6 -0.93 1989 7 -0.67 1989 8 -0.54 1989 9 -0.42 1989 10 -0.42 1989 11 -0.36 1989 12 -0.33 1990 1 -0.23 1990 2 -0.19 1990 3 -0.22 1990 4 -0.27 1990 5 -0.24 1990 6 -0.30 1990 7 -0.40 1990 8 -0.48 1990 9 -0.49 1990 10 -0.57 1990 11 -0.60 1990 12 -0.54 1991 1 -0.40 1991 2 -0.26 1991 3 -0.19 1991 4 -0.16 1991 5 -0.03 1991 6 0.28 1991 7 0.47 1991 8 0.53 1991 9 0.51 1991 10 0.58 1991 11 0.65 1991 12 0.62 1992 1 0.67 1992 2 0.89 1992 3 1.45 1992 4 1.99 1992 5 1.86 1992 6 1.12 1992 7 0.29 1992 8 -0.01 1992 9 -0.01 1992 10 -0.04 1992 11 -0.14 1992 12 -0.11 1993 1 0.10 1993 2 0.41 1993 3 0.82 1993 4 1.11 1993 5 1.26 1993 6 1.08 1993 7 0.85 1993 8 0.60 1993 9 0.52 1993 10 0.38 1993 11 0.21 1993 12 0.03 1994 1 -0.10 1994 2 -0.36 1994 3 -0.76 1994 4 -1.00 1994 5 -0.97 1994 6 -0.83 1994 7 -0.86 1994 8 -0.63 1994 9 -0.11 1994 10 0.38 1994 11 0.67 1994 12 0.68 1995 1 0.60 1995 2 0.23 1995 3 -0.54 1995 4 -1.04 1995 5 -1.18 1995 6 -0.86 1995 7 -0.57 1995 8 -0.38 1995 9 -0.40 1995 10 -0.41 1995 11 -0.64 1995 12 -0.66 1996 1 -0.65 1996 2 -0.42 1996 3 -0.82 1996 4 -1.13 1996 5 -1.64 1996 6 -1.43 1996 7 -1.30 1996 8 -0.92 1996 9 -0.76 1996 10 -0.84 1996 11 -1.03 1996 12 -1.08 1997 1 -0.74 1997 2 -0.14 1997 3 0.48 1997 4 1.29 1997 5 2.12 1997 6 3.02 1997 7 3.57 1997 8 3.85 1997 9 3.85 1997 10 4.01 1997 11 4.08 1997 12 4.06 1998 1 3.49 1998 2 3.03 1998 3 2.76 1998 4 2.81 1998 5 2.66 1998 6 2.22 1998 7 1.58 1998 8 0.87 1998 9 0.49 1998 10 0.11 1998 11 -0.05 1998 12 -0.40 1999 1 -0.49 1999 2 -0.40 1999 3 -0.42 1999 4 -0.44 1999 5 -0.67 1999 6 -0.46 1999 7 -0.32 1999 8 -0.46 1999 9 -0.69 1999 10 -1.08 1999 11 -0.96 1999 12 -0.91 2000 1 -0.66 2000 2 -0.56 2000 3 -0.30 2000 4 -0.21 2000 5 -0.16 2000 6 -0.25 2000 7 -0.37 2000 8 -0.36 2000 9 -0.37 2000 10 -0.59 2000 11 -0.86 2000 12 -0.95 2001 1 -0.68 2001 2 -0.25 2001 3 0.02 2001 4 -0.05 2001 5 -0.39 2001 6 -0.67 2001 7 -0.75 2001 8 -0.88 2001 9 -1.07 2001 10 -1.09 2001 11 -1.04 2001 12 -0.89 2002 1 -0.59 2002 2 0.04 2002 3 0.57 2002 4 0.81 2002 5 0.67 2002 6 0.30 2002 7 -0.03 2002 8 -0.12 2002 9 0.07 2002 10 0.48 2002 11 0.79 2002 12 0.74 2003 1 0.40 2003 2 0.04 2003 3 -0.19 2003 4 -0.69 2003 5 -1.12 2003 6 -1.30 2003 7 -0.78 2003 8 -0.51 2003 9 -0.10 2003 10 -0.01 2003 11 0.22 2003 12 0.10 2004 1 0.02 2004 2 -0.27 2004 3 -0.39 2004 4 -0.89 2004 5 -1.01 2004 6 -1.11 2004 7 -0.86 2004 8 -0.62 2004 9 -0.32 2004 10 0.16 2004 11 0.38 2004 12 0.36 2005 1 -0.17 2005 2 -0.74 2005 3 -0.88 2005 4 -0.68 2005 5 -0.46 2005 6 -0.46 2005 7 -0.50 2005 8 -0.52 2005 9 -0.84 2005 10 -1.18 2005 11 -1.23 2005 12 -0.92 2006 1 -0.37 2006 2 -0.15 2006 3 -0.52 2006 4 -0.78 2006 5 -0.76 2006 6 -0.19 2006 7 0.23 2006 8 0.62 2006 9 0.91 2006 10 0.94 2006 11 0.86 2006 12 0.72 2007 1 0.50 2007 2 0.05 2007 3 -0.59 2007 4 -1.22 2007 5 -1.54 2007 6 -1.46 2007 7 -1.26 2007 8 -1.05 2007 9 -1.23 2007 10 -1.41 2007 11 -1.64 2007 12 -1.29 2008 1 -0.64 2008 2 0.04 2008 3 0.34 2008 4 0.44 2008 5 0.50 2008 6 0.69 2008 7 0.98 2008 8 1.13 2008 9 0.92 2008 10 0.37 2008 11 -0.12 2008 12 -0.30 2009 1 -0.43 2009 2 -0.55 2009 3 -0.36 2009 4 -0.02 2009 5 0.47 2009 6 0.58 2009 7 0.75 2009 8 0.70 2009 9 0.56 2009 10 0.39 2009 11 0.42 2009 12 0.41 2010 1 0.35 2010 2 0.18 2010 3 0.05 2010 4 0.09 2010 5 0.07 2010 6 -0.24 2010 7 -0.75 2010 8 -1.16 2010 9 -1.24 2010 10 -1.25 2010 11 -1.13 2010 12 -0.88 2011 1 -0.50 2011 2 -0.50 2011 3 -0.40 2011 4 -0.31 2011 5 0.08 2011 6 0.18 2011 7 0.08 2011 8 -0.28 2011 9 -0.59 2011 10 -0.71 2011 11 -0.67 2011 12 -0.46 2012 1 -0.15 2012 2 0.11 2012 3 0.47 2012 4 0.65 2012 5 0.94 2012 6 0.77 2012 7 0.50 2012 8 0.18 2012 9 -0.07 2012 10 -0.23 2012 11 -0.53 2012 12 -0.63 2013 1 -0.73 2013 2 -0.67 2013 3 -0.85 2013 4 -1.13 2013 5 -1.54 2013 6 -1.66 2013 7 -1.52 2013 8 -1.15 2013 9 -0.86 2013 10 -0.66 2013 11 -0.55 2013 12 -0.31 2014 1 -0.33 2014 2 -0.29 2014 3 -0.30 2014 4 0.25 2014 5 0.87 2014 6 1.21 2014 7 1.15 2014 8 0.90 2014 9 0.81 2014 10 0.77 2014 11 0.65 2014 12 0.37 2015 1 -0.06 2015 2 -0.18 2015 3 0.20 2015 4 0.88 2015 5 1.60 2015 6 2.10 2015 7 2.13 2015 8 2.15 2015 9 2.02 2015 10 2.23 2015 11 2.21 2015 12 2.06 2016 1 1.75 2016 2 1.45 2016 3 1.05 2016 4 0.77 2016 5 0.51 2016 6 0.42 2016 7 0.34 2016 8 0.35 2016 9 0.36 2016 10 0.31 2016 11 0.25 2016 12 0.47 2017 1 0.89 2017 2 1.29 2017 3 1.31 2017 4 0.92 2017 5 0.31 2017 6 -0.13 2017 7 -0.32 2017 8 -0.52 2017 9 -0.69 2017 10 -0.97 2017 11 -1.21 2017 12 -1.30 2018 1 -1.25 2018 2 -1.21 2018 3 -1.16 2018 4 -1.07 2018 5 -0.84 2018 6 -0.61 2018 7 -0.46 2018 8 -0.24 2018 9 -0.09 2018 10 0.27 2018 11 0.63 2018 12 0.87 2019 1 0.78 2019 2 0.49 2019 3 0.31 2019 4 0.21 2019 5 0.05 2019 6 -0.28 2019 7 -0.60 2019 8 -0.72 2019 9 -0.74 2019 10 -0.53 2019 11 -0.30 2019 12 -0.18 2020 1 -0.14 2020 2 -0.14 2020 3 0.07 2020 4 0.02 2020 5 -0.20 2020 6 -0.72 2020 7 -1.02 2020 8 -1.19 2020 9 -1.02 2020 10 -0.91 2020 11 -0.76 2020 12 -0.79 2021 1 -0.84 2021 2 -0.83 2021 3 -0.86 2021 4 -0.83 2021 5 -0.70 2021 6 -0.46 2021 7 -0.30 2021 8 -0.41 2021 9 -0.62 2021 10 -0.90 2021 11 -1.23 2021 12 -1.31 2022 1 -1.46 2022 2 -1.14 2022 3 -1.24 2022 4 -1.26 2022 5 -1.51 2022 6 -1.44 2022 7 -1.09 2022 8 -0.93 2022 9 -1.12 2022 10 -1.30 2022 11 -1.10 2022 12 -0.70 2023 1 -0.17 2023 2 0.47 2023 3 1.53 2023 4 2.11 2023 5 2.45 2023 6 2.57 2023 7 2.92 2023 8 2.90 2023 9 2.68 2023 10 2.28 2023 11 2.01 2023 12 1.67 2024 1 1.34 2024 2 0.88 2024 3 0.38 2024 4 -0.38 2024 5 -0.78 2024 6 -0.97 2024 7 -0.72 2024 8 -0.65 2024 9 -0.50 2024 10 -0.35 2024 11 -0.10 2024 12 -0.11