Long Paddock

 

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

Most recent graph

Current SOI graph

PDF version of current graph (PDF, 17kB, last updated 16:45 20 Aug 2017)

Previous graphs

2010s

2000s

1990s

1980s

1970s

1960s

1950s

1940s

1930s

1920s

1910s

1900s

Last updated: 28 June 2010

Southern Oscillation Index