Warm - Cold ENSO anomalies (mm/day), by season


Warm ENSOs: 1925-26, 1930-31, 1939-40, 1940-41, 1941-42, 1957-58, 63-64, 65-66, 68-69, 69-70, 72-73

Cold ENSOs: 1924-25, 1933-34, 1942-43, 1949-50, 55-56, 70-71, 73-74, 75-76

based on Dec-Jan Nino3.4 being greater than 0.99C (warm), or less than -0.99C (cold)


Mar-May(0)
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Jun-Aug(0)
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Sep-Nov(0)
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Dec(0)-Feb(1)
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Mar-May(1)
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