The latest
Latest Southern Oscillation Index values
SOI values for 26 Nov 2015
Average for last 30 days -3.49
Average for last 90 days -13.88
Daily contribution to SOI calculation -3.95
Monthly average SOI values
August -19.02
September -16.66
October -21.30
Note: Calculated using the 1887–1989 base period.
