Years with weekly Nino 3.4 sea surface temperature (SST) anomalies in August <=-1.2°C: 1988, 1998, 1999, 2010 and 2022. Data are calculated using NOAA optimum interpolation SST version 2, which dates back to late 1981.

— Philip Klotzbach (@philklotzbach) August 22, 2022