Long Paddock

 

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Graphs of monthly SOI values and SOI Phases, 1899 - current

Please note: the daily SOI value published on 23 December 2016 was incorrect due to a data processing error. The corrected value was published on 3 January 2017. If you accessed our SOI data or SOI phase information between those dates we recommend you download a new copy to ensure you have the corrected information. We apologise for any inconvenience caused.

Most recent graph

Current SOI graph

PDF version of current graph (PDF, 17kB, last updated 16:46 20 Feb 2017)

Previous graphs

2010s

2000s

1990s

1980s

1970s

1960s

1950s

1940s

1930s

1920s

1910s

1900s

Last updated: 28 June 2010

Southern Oscillation Index