CPC_SOI
Southern Oscillation Index (CPC)
Standardized Tahiti minus standardized Darwin SLP anomaly, standardized again (negative = El Niño). — CPC · base 1991–2020
DATA THROUGH 2026-10-12 · UPDATED 2026-10-13 11:02 UTC
Standardized Tahiti minus standardized Darwin SLP anomaly, standardized again (negative = El Niño). — CPC · base 1991–2020