When was the last El Nino?

Answer

Even though an El Niño started at the end of 2009 and is supposed to last through the winter of 2010, the last one we had was in 2006. El Niño’s are known for causing outrageous weather. They generally last for about 12 months.
Q&A Related to "When was the last El Nino?"
El Nino happens usually every three to seven years but can happen more frequently. The last El Nino was in 2007, however, the last major one was back in 1997/98.
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The last El Nino happened started in September of 2006, and went until early 2007.
http://wiki.answers.com/Q/When+is+the+el+nino+last...
The most recent occurrence of El Niño in the Pacific Ocean started
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El Nino was in 2010... That meant that warm ocean currents from South East Asia flowed to South America (Countries affected i.e. Peru + Ecuador). This caused increased rain and other
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