ENSO: historical SST index

TABLE - IRI Probabilistic ENSO Prediction for NINO3.4 Region
- Made in Jan 2011

Season	La Niña	Neutral	El Niño
JFM 2011	98%	2%	0.3%
FMA 2011	88%	11%	1%
MAM 2011	67%	29%	4%
AMJ 2011	46%	44%	10%
MJJ 2011	33%	50%	17%
JJA 2011	27%	50%	23%
JAS 2011	27%	50%	23%
ASO 2011	27%	50%	23%
SON 2011	27%	50%	23%
OND 2011	27%	50%	23%