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Monthly Teleconnection Indices

  • Southern Oscillation Index

  • SST Anomalies in Nino 3.4 and 4 Regions

  • Outgoing Longwave Radiation

  • Pacific Decadal Oscillation

  • North Atlantic Oscillation

  • Arctic Oscillation

  • Pacific-North America Index

  • North Atlantic Oscillation Visualization


    to the top* Southern Oscillation Index (SOI)  (detailed description)

    Monthly SOI (period of record) Monthly SOI (last 5 years)
    SOI Period of Record Timeseries SOI (since 2000)


    to the top* SST Anomalies in Nino 3.4 and 4 Regions  (detailed description)

    SST Anomalies in Nino 3.4 (last 5 years) SST Anomalies in Nino 4 (last 5 years)
    SST Anomalies in Nino 3.4 (since 2000) SST Anomalies in Nino 4 (since 2000)

    SST Anomalies in Nino 3.4 1950 to Current SST Anomalies in Nino 4 1950 to Current
    SST Anomalies in Nino 3.4 1950 to Current SST Anomalies in Nino 4 1950 to Current

    SST Anomalies in Nino 3.4 1900 - 1950 SST Anomalies in Nino 4 1900 - 1950
    SST Anomalies in Nino 3.4 1900 - 1950 SST Anomalies in Nino 4 1900 - 1950


    to the top* Standardized Outgoing Longwave Radiation (OLR) Anomaly (detailed description)

    Standardized Outgoing Longwave Radiation (OLR) Anomaly (period of record) Standardized Outgoing Longwave Radiation (OLR) Anomaly (last 5 years)
    OLR Period of Record Timeseries OLR (since 2000)


    to the top* Pacific Decadal Oscillation (PDO)  (detailed description)

    Time Series Data

    Monthly PDO (period of record) Monthly PDO (last 5 years)
    PDO Period of Record Timeseries PDO (since 2000)


    to the top* North Atlantic Oscillation  (detailed description)

    Monthly NAO (period of record) Monthly NAO (last 5 years)
    NAO Period of Record Timeseries NAO (since 2000)


    to the top* Arctic Oscillation (AO)  (detailed description)

    Monthly Arctic Oscillation (period of record) Monthly Arctic Oscillation (last 5 years)
    AO Period of Record Timeseries AO (since 2000)


    to the top Pacific-North America Index  (detailed description)

    Monthly PNA (period of record) Monthly PNA (last 5 years)
    PNA Period of Record Timeseries PNA (since 2000)
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    *Data and description courtesy of the Climate Prediction Center
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    NOAA NCDC / Climate Monitoring / Teleconnection Indices / Help
    Please send questions or comments about this system to David.Levinson@noaa.gov