Another factor I look at is called the Pacific Decadal Oscillation PDO). It’s a longer term climate pattern that affects the temperature of the Pacific Ocean and the weather patterns around it.

In addition, during the 1950–1980 period the second mode of variability in both seasons has a strong relationship with Pacific Decadal Oscillation. The association between ENSO and the leading mode of ...

That said, it is coupled with a negative Pacific Decadal Oscillation, or -PDO. This features warmer water over the northwest ...

The study also showed connections between large-scale climate patterns, such as El Niño and the Pacific Decadal Oscillation (PDO), in modulating marine heat waves, especially in West Coast ...

Correlation of UCRB precipitation with global sea surface temperature (SST) anomalies showed a strong link with the equatorial and northern Pacific during periods of heightened variability of the ...