Using the Oceanic Nino Index here the strong to very strong El Ninos of the past can be summarized like this, showing the 2015 El Nino to be so far most like 1972-73:
1957-58, 16 consecutive months, 1.0 average severity
1965-66, 11 consecutive months, 1.2 average severity
1972-73, 12 consecutive months, 1.2 average severity (One 3-month mean reading at 2.0)
1982-83, 15 consecutive months, 1.3 average severity (Three consecutive 3-month mean readings averaging 2.1)
1997-98, 13 consecutive months, 1.6 average severity (Five consecutive 3-month mean readings averaging 2.2)
2015 to date, 8 consecutive months, 1.2 average severity (One 3-month mean reading at 2.0).
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| At this hour in Grand Rapids we have 38 degrees F and no snow whatsoever. |
