This project explores the association between the El Niño–Southern Oscillation (ENSO) and regional climate variability across Eurasia. Rather than employing traditional regression-based methods, this study leverages association rule mining to investigate whether specific temperature and precipitation anomaly states co-occur under different ENSO phases. By comparing El Niño and Neutral conditions, we examine variations in rule presence and strength to assess how these co-occurrence patterns evolve across ENSO states.