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Historical Indices of Pacific Northwest and Global Climate Variability

The Climate Impacts Group studies the impacts of seasonal, interannual, and decadal-scale climate variability. In order to understand the range of expected climate variability, we have collected the climate data listed below. Most of the data are given as monthly averages. Anomaly time series are computed as deviations from the monthly means of the full record available.

More information about climate is available on Nate Mantua's climate monitoring and prediction website.


Pacific Northwest Climate Variability Time Series
Global Climate Variability Time Series

Pacific Northwest Climate Variability

Air temperature
Snow depth
Sea surface temperature (SST)
Glacier mass balance/length


Global Climate Variability

El Niño-Southern Oscillation (ENSO)

Pacific Interdecadal Oscillation (PDO)

 Other Global SST and atmospheric circulation time series


(Many thanks to Todd Mitchell and the JISAO climate data archive)


















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