ENSOblog_EQSOI_Nino3.4_scatterplot_20220714.png

Each dot on this scatterplot shows the atmospheric ENSO conditions each June (horizontal axis) since 1950 versus the oceanic ENSO conditions the following November–January (vertical axis). When the June Equatorial Southern Oscillation Index (ESOI) is negative, winter Oceanic Niño Index conditions are frequently in the El Niño range (red dots), sometimes neutral (gray dots), but rarely in the La Niña range (blue dots).  When June ESOI is positive, the winter is usually in the La Niña range, sometimes in the neutral range, but rarely in the El Niño range.  The June 2022 EQSOI—shown as an open circle on the horizontal axis—was the third-highest June SOI on record. Data from CPC, image by Climate.gov.